Journal articles: 'Traffic Information Service Broadcast'

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Zeitlin, A. D., and R. C. Strain. "Augmenting ADS-B with traffic information service-broadcast." IEEE Aerospace and Electronic Systems Magazine 18, no. 10 (October 2003): 13–18. http://dx.doi.org/10.1109/maes.2003.1244770.

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Su, Tianhong, Sujie Shao, Shaoyong Guo, and Min Lei. "Blockchain-Based Internet of Vehicles Privacy Protection System." Wireless Communications and Mobile Computing 2020 (September 7, 2020): 1–10. http://dx.doi.org/10.1155/2020/8870438.

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With the development of wireless local area networks and intelligent transportation technologies, the Internet of Vehicles is considered to be an effective method to alleviate the severe situation of the current transportation system. The vehicles in the Internet of Vehicles system build the Vehicular Ad Hoc Networks through wireless communication technology and dynamically provide different services through the real-time driving information broadcast by the vehicles. Vehicle drivers can control the distance, planning the driving route, between vehicles according to the current traffic environment, which improves the overall safety and efficiency of the traffic system. Due to the particularity of the Internet of Vehicles system service, vehicles need to broadcast their location information frequently. Attackers can collect and analyze vehicle broadcast information to steal privacy and even directionally track the owner through the driving trajectory, bringing serious security risks. This paper proposes a blockchain-based privacy protection system for the Internet of Vehicles. The system combines the blockchain with the Internet of Vehicles system to design a safe and efficient two-way authentication and key agreement algorithm through encryption and signature algorithm, which also solves the central dependency problem of the traditional Internet of Vehicles system.

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Vasudevan, Meenakshy, Karl Wunderlich, James Larkin, and Alan Toppen. "Comparison of Mobility Impacts on Urban Commuting." Transportation Research Record: Journal of the Transportation Research Board 1910, no. 1 (January 2005): 38–45. http://dx.doi.org/10.1177/0361198105191000105.

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This paper explores the effectiveness of relying on commercial radio as a source of traveler information and presents an approach to quantify mobility benefits from radio traffic advisories. The study, conducted for the Washington, D.C., metropolitan area, used an analytical technique called the heuristic online web-linked arrival time estimator to examine whether broadcast traffic advisories could have mobility benefits similar to a prospective notification-based traveler information service offering personalized estimates of travel times. Traffic reports were recorded from a local radio station and manually coded to translate them into a suitable format for analysis. Results from the analysis of 37 weekdays consisting of 4,410 advisories indicated that radio traffic advisories were less effective in improving traveler on-time reliability or reducing travel disutility than a service offering route-specific travel time reports. The simulated commuter receiving regular quantitative estimates of travel times on relevant roadways typically made more effective route and trip-timing decisions than the simulated commuter receiving comparatively incomplete, irregular, and vague advisories on prevailing congestion conditions from broadcast traffic reports. In contrast, the simulated commuter listening to radio advisories recorded similar benefits to those of the simulated control subject, who ignored all forms of traveler information. During the morning peak period, the simulated radio listener fared worse than the simulated control subject and recorded lower on-time reliability performance and higher travel disutility. During the afternoon peak period, the simulated radio listener had lower travel disutility but also experienced a nominal reduction in on-time reliability performance.

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Calafell, Jordi, and Martin Pyne. "In-vehicle Traffic Information Systems in Europe: Never Mind the (Band)Width, Feel the Quality." Journal of Navigation 54, no. 3 (September 2001): 329–35. http://dx.doi.org/10.1017/s0373463301001527.

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The ever-increasing number of vehicles on the road has created a serious demand for traffic information not only on the move but also at the planning stage of a journey. While on the move, the driver will be able to re-route his/her journey avoiding traffic congestion, but this information could be even more valuable before starting the journey. Today there are differences between the three main ITS markets (USA, Japan and Europe). Japan is leading the way, with the introduction in 1995 of the Vehicle Information Communication System (VICS), which is a free service. Vehicles are equipped with VICS receivers taking information from a network of road beacons installed on main roads, transmitting traffic flows by infrared rays, wave beacons, and FM multiplex broadcast. Europe has been involved in driver information systems from the early '90s when RDS was developed, which is another free service, and most of the car radios sold in Europe are able to process RDS signals. Since then, new free services have been developed – for example, RDS-TMC. In the UK, the private sector has been heavily involved recently, its major player being Trafficmaster. The Trafficmaster system is based on a network of traffic detection sensors, which covers all major UK motorways and most of the major A roads, with plans to expand into the continent. Trafficmaster collects road traffic flows and disseminates this information to its subscribers via a range of technologies, including GSM. The quality of the information supplied by the free and subscription services can be improved by being fully integrated with on-board navigation systems and by providing more detailed and wider types of information. All current methods are described/analysed and compared in this paper, with future enhancement highlighted. One of the main limitations lies in current data transmission routes, which are not fast enough to support the data required for an optimal use of the system. Some technologies available will potentially allow the many service providers to transmit information.

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Englisher, Larry S., Richard D. Juster, Susan Bregman, David G. Koses, and Alicia Powell Wilson. "User Perceptions of SmarTraveler Advanced Traveler Information System: Findings from Second-Year Evaluation." Transportation Research Record: Journal of the Transportation Research Board 1537, no. 1 (January 1996): 63–69. http://dx.doi.org/10.1177/0361198196153700109.

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SmarTraveler was implemented as an operational test of an advanced traveler information system in the Boston metropolitan area. Users call the service from cellular or conventional telephones to receive realtime, route-specific traffic and transit information free of charge (except for any telephone company charges). Several evaluations were conducted since the service began in January 1993, to assess public acceptance of the information provided by SmarTraveler. Findings on user perceptions of and response to the program during its second year of operation, from April through December 1994, are summarized. Calling frequency increased during this period. Calls from cellular telephones made up 61 percent of the total calls received, even though cellular telephone callers were in the minority of the user population. Users were found to be quite satisfied with the service, especially in comparison with broadcast media traffic reports. In particular, they found SmarTraveler easy to use and were pleased with its availability on demand, its up-to-the-minute information, and its coverage of major routes. Two-thirds of current users said that SmarTraveler helped reduce anxiety. Although virtually all users said they would continue calling SmarTraveler in the future, users indicated substantial sensitivity to the potential imposition of a service fee.

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Wang, Wenjie, Tao Luo, and Ying Hu. "An Adaptive Information Quantity-Based Broadcast Protocol for Safety Services in VANET." Mobile Information Systems 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/2195496.

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Vehicle-to-vehicle communication plays a significantly important role in implementing safe and efficient road traffic. When disseminating safety messages in the network, the information quantity on safety packets changes over time and space. However, most of existing protocols view each packet the same to disseminate, preventing vehicles from collecting more recent and precise safety information. Hence, an information quantity-based broadcast protocol is proposed in this paper to ensure the efficiency of safety messages dissemination. In particular, we propose the concept of emergency-degree to evaluate packets’ information quantity. Then we present EDCast, an emergency-degree-based broadcast protocol. EDCast differentiates each packet’s priority for accessing the channel based on its emergency-degree so as to provide vehicles with more safety information timely and accurately. In addition, an adaptive scheme is presented to ensure fast dissemination of messages in different network condition. We compare the performance of EDCast with those of three other representative protocols in a typical highway scenario. Simulation results indicate that EDCast achieves higher broadcast efficiency and less redundancy with less delivery delay. What we found demonstrates that it is feasible and necessary for incorporating information quantity of messages in designing an efficient safety message broadcast protocol.

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Zhao, HongJian. "Optimization method of navigation information mode under the condition of multi-exit city expressway." E3S Web of Conferences 283 (2021): 02022. http://dx.doi.org/10.1051/e3sconf/202128302022.

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In recent years, mobile phone navigation software has been widely used, but the voice broadcast information of many navigation software is not clear, which is easy to cause confused driving. Urban expressway is an important artery of the city. The road and traffic conditions of urban expressways are extremely complicated, and there are many types of exits, which can easily cause confused driving. Therefore, optimization of navigation modes under the condition of multi-exit urban expressways is particularly important. Based on the experimental data of simulated driving, this paper focuses on the influence of voice navigation broadcast timing on driving under urban expressway, founding driver’s behavior is significantly different under diverse navigation modes. This paper uses the principal component analysis method to comprehensively evaluate the navigation broadcast timing, and gives the optimal navigation broadcast timings for various multi-exit urban expressways. In most cases, the first broadcast time should be 1500m from the exit. This paper clarifies the impact of navigation broadcast timing on driving, and optimizes the navigation mode of multi-exit urban expressways, which is of great significance for reducing yaw under navigation and improving navigation services.

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Poularakis, Konstantinos, and Leandros Tassiulas. "Cooperation and information replication in wireless networks." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2062 (March 6, 2016): 20150123. http://dx.doi.org/10.1098/rsta.2015.0123.

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A significant portion of today's network traffic is due to recurring downloads of a few popular contents. It has been observed that replicating the latter in caches installed at network edges—close to users—can drastically reduce network bandwidth usage and improve content access delay. Such caching architectures are gaining increasing interest in recent years as a way of dealing with the explosive traffic growth, fuelled further by the downward slope in storage space price. In this work, we provide an overview of caching with a particular emphasis on emerging network architectures that enable caching at the radio access network. In this context, novel challenges arise due to the broadcast nature of the wireless medium, which allows simultaneously serving multiple users tuned into a multicast stream, and the mobility of the users who may be frequently handed off from one cell tower to another. Existing results indicate that caching at the wireless edge has a great potential in removing bottlenecks on the wired backbone networks. Taking into consideration the schedule of multicast service and mobility profiles is crucial to extract maximum benefit in network performance.

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Chambers, C. J. "Future traffic demands and characteristics from a media perspective." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2062 (March 6, 2016): 20140433. http://dx.doi.org/10.1098/rsta.2014.0433.

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Providing topical information and entertainment began with wall paintings, the spoken word and face-to-face performance, then the addition of the written and printed word along with illustrations and pictures, followed by audio recording. In the early 1920s, regular broadcast radio services began, followed by television in the late 1930s, and this has provided the basis of broadcast media we know today. These innovations frequently pushed boundaries and challenged the status quo, but not all of these challenges were technical by any means. However, it could be argued that the development of accessible technologies has been fundamental to the successful deployment of information and entertainment media in all their forms throughout history. Today, the merging of audio and video media with a whole range of digital services is becoming commonplace. With the ability of such services to develop new approaches in supporting people’s everyday living experiences, this will take communication networks into a new era central to the way we live. This paper postulates that the historical trends with audio and video media developments from the early 1900s will continue to push future boundaries, and attempts to highlight the key demands and the developing trends from a communication network point of view.

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Lin, Hua Yi, and Tzu Chiang Chiang. "Intrusion Detection Mechanisms Based on Queuing Theory in Remote Distribution Sensor Networks." Advanced Materials Research 121-122 (June 2010): 58–63. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.58.

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Recently, sensor networks are usually applied on collecting remote sensing information. The deployed sensor nodes are separated and responsible for specific purposes, and act as an individual device. They cooperatively transmit sensed data to the base station, as shown in Fig.1. However, the transmitted data are exposed to open environments, and possibly contain confidential information. If malicious attacks interfere in the communication using huge packets to break the communication, thus the system can not work properly. In general, attackers exploit a broadcast storm or a Distributed Denial-of-Service (DDoS) attack to paralyze the entire network. Therefore, this study proposes a queuing theory based scheme to detect whether the system encounters malicious attacks. Our proposed scheme provides the arrival requests with a queuing service on the base station, which is responsible for dealing with transmitted jobs. Once the jammed traffic is anomalous for long periods, the system immediately detects the malicious attacks using our proposed approach.

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Guo, Chi, Wenfei Guo, Guangyi Cao, and Hongbo Dong. "A Lane-Level LBS System for Vehicle Network with High-Precision BDS/GPS Positioning." Computational Intelligence and Neuroscience 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/531321.

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In recent years, research on vehicle network location service has begun to focus on its intelligence and precision. The accuracy of space-time information has become a core factor for vehicle network systems in a mobile environment. However, difficulties persist in vehicle satellite positioning since deficiencies in the provision of high-quality space-time references greatly limit the development and application of vehicle networks. In this paper, we propose a high-precision-based vehicle network location service to solve this problem. The major components of this study include the following: (1) application of wide-area precise positioning technology to the vehicle network system. An adaptive correction message broadcast protocol is designed to satisfy the requirements for large-scale target precise positioning in the mobile Internet environment; (2) development of a concurrence service system with a flexible virtual expansion architecture to guarantee reliable data interaction between vehicles and the background; (3) verification of the positioning precision and service quality in the urban environment. Based on this high-precision positioning service platform, a lane-level location service is designed to solve a typical traffic safety problem.

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Koch, Paul, and Stefan Gewies. "Worldwide Availability of Maritime Medium-Frequency Radio Infrastructure for R-Mode-Supported Navigation." Journal of Marine Science and Engineering 8, no. 3 (March 18, 2020): 209. http://dx.doi.org/10.3390/jmse8030209.

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The Ranging Mode (R-Mode), a maritime terrestrial navigation system under development, is a promising approach to increase the resilient provision of position, navigation and timing (PNT) information for bridge instruments, which rely on Global Navigation Satellite Systems (GNSS). The R-Mode utilizes existing maritime radio infrastructure such as marine radio beacons, which support maritime traffic with more reliable and accurate PNT data in areas with challenging conditions. This paper analyzes the potential service, which the R-Mode could provide to the mariner if worldwide radio beacons were upgraded to broadcast R-Mode signals. The authors assumed for this study that the R-Mode is available in the service area of the 357 operational radio beacons. The comparison with the maritime traffic, which was generated from a one-day worldwide Automatic Identification System (AIS) Class A dataset, showed that on average, 67% of ships would operate in a global R-Mode service area, 40% of ships would see at least three and 25% of ships would see at least four radio beacons at a time. This means that R-Mode would support 25% to 40% of all ships with position and 67% of all ships with PNT integrity information. The relatively high number of supported ships compared to the total radio beacon coverage of about 9% of the earth’s surface is caused by the good coverage of busy ports and areas such as the coast of China, North Sea and Baltic Sea. These numbers emphasize the importance of marine radio beacons for the R-Mode system.

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Sanguesa, Julio A., Manuel Fogue, Piedad Garrido, Francisco J. Martinez, Juan-Carlos Cano, and Carlos T. Calafate. "A Survey and Comparative Study of Broadcast Warning Message Dissemination Schemes for VANETs." Mobile Information Systems 2016 (2016): 1–18. http://dx.doi.org/10.1155/2016/8714142.

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Vehicle-to-vehicle (V2V) communications also known as vehicular ad hoc networks (VANETs) allow vehicles to cooperate to increase driving efficiency and safety on the roads. In particular, they are forecasted as one of the key technologies to increase traffic safety by providing useful traffic services. In this scope, vehicle-to-vehicle dissemination of warning messages to alert nearby vehicles is one of the most significant and representative solutions. The main goal of the different dissemination strategies available is to reduce the message delivery latency of such information while ensuring the correct reception of warning messages in the vehicle’s neighborhood as soon as a dangerous situation occurs. Despite the fact that several dissemination schemes have been proposed so far, their evaluation has been done under different conditions, using different simulators, making it difficult to determine the optimal dissemination scheme for each particular scenario. In this paper, besides reviewing the most relevant broadcast dissemination schemes available in the recent literature, we also provide a fair comparative analysis by evaluating them under the same environmental conditions, focusing on the same metrics, and using the same simulation platform. Overall, we provide researchers with a clear guideline of the benefits and drawbacks associated with each scheme.

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Jabardi, Mohammed, and Asaad Hadi. "Ontology Meter for Twitter Fake Accounts Detection." International Journal of Intelligent Engineering and Systems 14, no. 1 (February 28, 2021): 410–19. http://dx.doi.org/10.22266/ijies2021.0228.38.

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One of the most popular social media platforms, Twitter is used by millions of people to share information, broadcast tweets, and follow other users. Twitter is an open application programming interface and thus vulnerable to attack from fake accounts, which are primarily created for advertisement and marketing, defamation of an individual, consumer data acquisition, increase fake blog or website traffic, share disinformation, online fraud, and control. Fake accounts are harmful to both users and service providers, and thus recognizing and filtering out such content on social media is essential. This study presents a new approach to detect fake Twitter accounts using ontology and Semantic Web Rule Language (SWRL) rules. SWRL rules-based reasoner is utilized under predefined rules to infer whether the profile is trust or fake. This approach achieves a high detection accuracy of 97%. Furthermore, ontology classifier is an interpretable model that offers straightforward and human-interpretable decision rules.

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Latif, Shahid, Saeed Mahfooz, Bilal Jan, Naveed Ahmad, Haleem Farman, Murad Khan, and Huma Javed. "Multicriteria Based Next Forwarder Selection for Data Dissemination in Vehicular Ad Hoc Networks Using Analytical Network Process." Mathematical Problems in Engineering 2017 (2017): 1–18. http://dx.doi.org/10.1155/2017/4671892.

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Vehicular ad hoc network (VANET) is a wireless emerging technology that aims to provide safety and communication services to drivers and passengers. In VANETs, vehicles communicate with other vehicles directly or through road side units (RSU) for sharing traffic information. The data dissemination in VANETs is a challenging issue as the vehicles have to share safety critical information in real time. The data distribution is usually done using broadcast method resulting in inefficient use of network resources. Therefore, to avoid the broadcast storm and efficiently use network resources, next forwarder vehicle (NFV) is selected to forward data to nearby vehicles. The NFV selection is based on certain parameters like direction, distance, and position of vehicles, which makes it a multicriteria decision problem. In this paper, analytical network process (ANP) is used as a multicriteria decision tool to select the optimal vehicle as NFV. The stability of alternatives (candidate vehicles for NFV selection) ranking is checked using sensitivity analysis for different scenarios. Mathematical formulation shows that ANP method is applicable for NFV selection in VANETs. Simulation results show that the proposed scheme outperforms other state-of-the-art data dissemination schemes in terms of reachability, latency, collisions, and number of transmitted and duplicate data packets.

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Haider and Hwang. "Adaptive Transmit Power Control Algorithm for Sensing-Based Semi-Persistent Scheduling in C-V2X Mode 4 Communication." Electronics 8, no. 8 (July 29, 2019): 846. http://dx.doi.org/10.3390/electronics8080846.

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For cellular-based vehicle-to-everything (C-V2X) communication, vital information about status and intention is periodically broadcasted by each vehicle using the cooperative awareness message (CAM) service. In C-V2X, the task of resource allocation can either be carried out in a centralized manner by the network, termed Mode 3, or by the vehicles themselves in a distributed manner without any core network support, termed Mode 4. Mode 4 scheduling is accomplished by employing sensing-based semi-persistent scheduling (SB-SPS), where the vehicles sense the medium and identify the best time-frequency resource combination for transmission of the CAM. Focusing on Mode 4 in this paper, we present a comprehensive analysis of the impact of variations in the transmit power of the vehicle on the performance of SB-SPS for C-V2X communications in various traffic scenarios through simulations. An adaptive-transmit power control (A-TPC) algorithm is presented to improve the quality of service for various large-scale traffic scenarios, where each vehicle uses real-time channel-sensing information to adjust the transmit power in order to avoid interference with neighbouring vehicles. The results demonstrate that our proposed algorithm outperforms the conventional TPC schemes.

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Saiko, Volodymyr, Volodymyr Nakonechnyi, Serhii Dakov, and Serhii Tolyupa. "TERACHERTSOVYI CHANNEL RADIODOSTUPU FOR COMPLEX SYSTEM WITHOUT SYSTEMS THE BELL OF THE OBJECTS." Cybersecurity: Education, Science, Technique, no. 1 (2018): 17–25. http://dx.doi.org/10.28925/2663-4023.2018.1.1725.

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One of the perspective use of THz (submillimeter) technologies is the wireless communication systems. In particular, it will lead to development of the submillimeter/THz band devices with brand new size, interference immunity and energy efficiency, for high speed video signal broadcasting, line of sight relay, for 5G cell phone transport networks, high precision radars for small size, high velocity target detection and tracking, and hidden object detection radiometric systems. Nowadays, the research of such wireless systems is focused on increase of communication channel bandwidth using superbroadband signals, which occupy all the THz band. However, it’s worth to mention, that in many perspective applications of 5th generation networks, the range has more important role, than the data transmission speed. The goal of the article is the increase of communication center’s information efficiency by the development of innovative solution for construction of the wireless broadband subscriber channel for information resource access using THz band, which provides greater efficiency in the channel’s range and bit rate. The results of THz-band wireless broadband access technical solution analysis are being provided here. The implementation of broadband access requires designating significant informational resource amount per subscriber, which, if the designated resource amount is not enough, leads to decrease in efficiency in service providing. Today’s lack of transmitter/receiver hardware of decent cost, when using unlicensed THz frequencies in backhaul network channels, leads to significant decrease of backhaul network channel length, which means decrease of the network zone size. Therefore, to avoid these flaws, the new technical solution for every subscriber’s bit rate increase, the subscriber amount increase on the territory covered by the access point, and the service coverage territory expansion possibility, is being provided here. During the THz-band channel broadcast system deployment process, one of the main issue is the channel and time resource distribution between the wireless communication system’s different sectors (directions), which is due to the change of traffic quality and amount. A generalized channel and time resource amount prediction algorithm is being provided for high efficiency wireless access channel. The control of such system can be done similarly to the server network. Territorial access point location allows: the increase of data amount being provided to the covered territory subscribers; the possibility to hold energy resource (energy per bit), which means the backhaul channel length is being preserved; the possibility of covered territory size expansion. Generally, the developed solution allows to increase the new generation wireless system data use efficiency, to increase the distance to remote subscriber network in some times, depending on the network access node’s input data stream ratio, and to increase the amount of wireless access points.

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Rezaei, Mehdi, Imed Bouazizi, and Moncef Gabbouj. "Statistical Time-Frequency Multiplexing of HD Video Traffic in DVB-T2." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–12. http://dx.doi.org/10.1155/2009/186960.

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Digital video broadcast-terrestrial 2 (DVB-T2) is the successor of DVB-T standard that allows a two-dimensional multiplexing of broadcast services in time and frequency domains. It introduces an optional time-frequency slicing (TFS) transmission scheme to increase the flexibility of service multiplexing. Utilizing statistical multiplexing (StatMux) in conjunction with TFS is expected to provide a high performance for the broadcast system in terms of resource utilization and quality of service. In this paper, a model for high-definition video (HDV) traffic is proposed. Then, utilizing the proposed model, the performance of StatMux of HDV broadcast services over DVB-T2 is evaluated. Results of the study show that implementation of StatMux in conjunction with the newly available features in DVB-T2 provides a high performance for the broadcast system.

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Fujii, Haruki. "Automobile TRaffic Information Systems : Information Service and Traffic Control." Journal of the Society of Mechanical Engineers 93, no. 858 (1990): 420–24. http://dx.doi.org/10.1299/jsmemag.93.858_420.

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AKIYAMA, Takamasa, and Chun Fu SHAO. "Traffic Information Service and Fuzzy Traffic Flow Analysis." Journal of Japan Society for Fuzzy Theory and Systems 11, no. 2 (1999): 246–58. http://dx.doi.org/10.3156/jfuzzy.11.2_62.

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Xylomenos, George, Vasilis Vogkas, and George Thanos. "The multimedia broadcast/multicast service." Wireless Communications and Mobile Computing 8, no. 2 (2008): 255–65. http://dx.doi.org/10.1002/wcm.463.

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Jiang, Chang-Jun, Zhao-Hui Zhang, Guo-Sun Zeng, Hong-Zhong Chen, Duo-Qian Miao, Yu Fang, Xiao-Feng Tao, et al. "Urban Traffic Information Service Application Grid." Journal of Computer Science and Technology 20, no. 1 (January 2005): 134–40. http://dx.doi.org/10.1007/s11390-005-0015-3.

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Fang, Yu, Dong Liang Zhang, Chun Gang Yan, Hong Zhong Chen, and Changjun Jiang. "Service and Management Oriented Traffic Information Grid." International Journal of Distributed Systems and Technologies 1, no. 4 (October 2010): 14–26. http://dx.doi.org/10.4018/jdst.2010100102.

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Traffic information service plays an important role in one’s daily life. However, traffic information processing is very complicated because of its dynamic, cooperative and distributed features. This paper presents the Service and Monitoring Oriented Traffic Information Grid. In this system, it is a remarkable characteristic to provide real-time, dynamic information services for travelers and traffic managers by grid technology. The system provides travelers with services of optimized route scheme, bus arrival prediction based on real-time route status, and route status forecast. For traffic managers, the system can provide vehicle tracing, traffic monitoring, history data analysis, and decision making on traffic control strategy. In this regard, key research includes large multi-source traffic data integration, route status forecast, and optimum dynamic travel scheme implementation based on massive GPS data.

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杨, 达. "Research Summary on Traffic Information Service Platform." Open Journal of Transportation Technologies 06, no. 01 (2017): 32–42. http://dx.doi.org/10.12677/ojtt.2017.61005.

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Byun, Yoon-Kwan, Sekchin Chang, and Seong Jong Choi. "An Emergency Alert Broadcast Based on the Convergence of 5G and ATSC 3.0." Electronics 10, no. 6 (March 23, 2021): 758. http://dx.doi.org/10.3390/electronics10060758.

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We propose a novel emergency alert broadcast mechanism for mobile phone users, which is based on the convergence of 5G and ATSC 3.0. Cellular networks including 5G adopt a broadcast technique for emergency alert. This technique just delivers a text-based message. Moreover, the message only includes a limited number of characters. Therefore, cellular networks cannot afford to provide abundant information in emergency cases. Broadcast networks such as ATSC 3.0 also offer an emergency alert broadcast service. This service can deliver a multimedia-based message in emergency cases. Therefore, the ATSC 3.0 supports more abundant information in the cases of emergency alert broadcasts. Especially, the ATSC 3.0 employs wake-up functionality and location information, which enables the delivery of emergency alerts to idle-state receivers in emergency areas. However, it is unlikely that the wake-up functionality and the location information are directly applicable to mobile phone users due to some practical issues. In order to improve the emergency alert broadcast service in mobile environments, we converge the 5G and the ATSC 3.0 networks, which effectively exploits the advantages of the networks. For the convergence network, we suggest a modified table, which associates the 5G message with the ATSC 3.0 message in the cases of emergency alerts. We also present a novel scenario for delivery of the emergency alert messages. Simulation results show that the convergence significantly enhances the receiver performance for emergency alert broadcast.

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Xiao, Guangbing, Haibo Zhang, Ning Sun, Yong Chen, Jiamin Shi, and Yong Zhang. "Cooperative Bargain for the Autonomous Separation of Traffic Flows in Smart Reversible Lanes." Complexity 2019 (October 30, 2019): 1–12. http://dx.doi.org/10.1155/2019/2893732.

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Spacer bars in the smart reversible lanes make periodically broadcast of messages to share their local observed traffic information with each other. This aims to help other spacer bars acquire the global traffic information and make consistent movement when separating the flows. However, radio interference and vehicles in the traffic may degrade the qualities of wireless communication links and cause frequent message losses in the broadcast. Existing solutions tend to use data forwarding to enhance the message dissemination, which may cause imbalanced load in the spacer bars. For instance, the nodes close to the sink have to forward more messages, whereas the ones far away from the sink have fewer messages for forwarding. The unbalanced distribution of network load has a high risk of blocking the wireless communication links and yield inconsistent movement in the reversible lanes. In this paper, we propose a Cooperative Bargain (CoB) scheme where each spacer bar carries some received messages to help other spacer bars recover their lost messages. Since the spacer bars can only acquire the local information, we formulate a cooperative bargain game to negotiate how to allocate the task of message recovery with a balanced network load until a consensus is achieved. CoB is evaluated with the real-world Wi-Fi communication traces in Isti/rural. Simulation results show that CoB can recover an average of 98.6% messages within 100 milliseconds in a 50-node network. CoB does not require the global network information but it can still achieve a comparable performance to other broadcast schemes.

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Xu, Hai Hua, Li Ping Liu, and Bai Chuan Liu. "Research of Digital TV Public Cultural Information Service System Based on DBS." Advanced Materials Research 1014 (July 2014): 383–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1014.383.

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In the existing digital TV platform based on direct broadcast satellite, using the idle repeater resources, digital TV intelligent operating system and the core technology of middleware can present multiple functions such as broadcast TV, cable TV network etc. in one terminal without increasing the cost of existing satellite receiving terminal, realizing a variety of digital service like satellite TV channels, local channels, movies pushing Well-being community, health care, culture sharing, government affairs openness, television, newspapers and magazines. At the same time it can be transmitted to the edge server of Internet, the front of cable TV network and other network environment to realize the integration of three kinds of networks, which creates a kind of public digital cultural information service system with less investment, multiple functions, wide coverage, fast transmission speed, resource sharing, safe and controllable.

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Besada, Juan A., Gonzalo de Miguel, Ana M. Bernardos, and José R. Casar. "Automatic-dependent surveillance–broadcast experimental deployment using system wide information management." International Journal of Microwave and Wireless Technologies 4, no. 2 (April 2012): 187–98. http://dx.doi.org/10.1017/s1759078712000232.

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This paper describes an automatic-dependent surveillance–broadcast (ADS–B) implementation for air-to-air and ground-based experimental surveillance within a prototype of a fully automated air traffic management (ATM) system, under a trajectory-based-operations paradigm. The system is built using an air-inclusive implementation of system wide information management (SWIM). This work describes the relations between airborne and ground surveillance (SURGND), the prototype surveillance systems, and their algorithms. System's performance is analyzed with simulated and real data. Results show that the proposed ADS–B implementation can fulfill the most demanding surveillance accuracy requirements.

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Fuller, A. C. "Marine Safety Information." Journal of Navigation 41, no. 02 (May 1988): 242–48. http://dx.doi.org/10.1017/s0373463300009346.

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Marine Safety Information is defined as the coordinated service of navigational and meteorological warnings, meteorological forecasts and distress alerts.It represents the core information which the Master of a ship is required to receive under the provisions of chapters IV and V of the Safety of Life at Sea Convention (SOLAS).In essence these cover the responsibilities of nations to broadcast messages relating to marine hazards, the obligation placed upon Masters to report such hazards, and to receive messages broadcast about them.Three separate kinds of information are dealt with in the SOLAS Convention. First, Meteorological Services: these are the business of the World Meteorological Organization (WMO), which seeks to coordinate the work of various national meteorological administrations. Unfortunately a multitude of overlapping services and areas have grown up out of an expanding practical requirement and capability. This has resulted in overlap of services and consequent multiplication of effort.

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Cai, Fei, Ning Ding, and Xiao Xiao Qu. "Construction of Urban Traffic Information Service System Based on WebGIS." Applied Mechanics and Materials 353-356 (August 2013): 3516–19. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.3516.

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In order to improve utilization of traffic information, this paper introduces the construction of urban traffic information service system based on SuperMap iServer for Java. Overall structure of urban traffic information service system is designed. The system uses the remote sensing image and electronic map of Jinan as basic data and implement functions including route guidance, parking guidance, real-time traffic information and statistical analysis. The system makes advantage of the superiority of Ajax in asynchronous transmission which enhances the user's browsing experience. Efficiency of traffic flow guidance and traffic management decisions increases by the system, which greatly facilitates the daily activities of city residents. Applications show that the system is a beneficial exploration of intelligent transportation with strong practicality and versatility.

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Rahim, Aneel, Zeeshan Shafi Khan, Fahad Bin Muhaya, Muhammad Sher, and Muhammad Khurram Khan. "Information Sharing in Vehicular AdHoc Network." International Journal of Computers Communications & Control 5, no. 5 (December 1, 2010): 892. http://dx.doi.org/10.15837/ijccc.2010.5.2252.

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Relevance Technique broadcast the useful information and removes the redundant data. 802.11e protocol implementation has certain flaws and is not suitable for VANETs scenarios. Main issue in 802.11e protocol is internal sorting of packets, no priority mechanism within the queues and often lower priority traffic get more medium than high priority traffic. In this paper, the mathematical model of relevance scheme is enhanced so that it can consider the network control in real scenario by considering the impact of malicious node in network. Problems of 802.11e protocol can be resolved by making virtual queue at application level. We analyze the comparison of simple virtual queue with the over all impact of virtual queue and mathematical model. Similarly we compare the mathematical model with over all impact of virtual queue and modified mathematical model using NS-2 simulator.

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Mebarkia, Khalil, and Zoltan Zsoka. "Service traffic engineering: Avoiding link overloads in service chains." Journal of Communications and Networks 21, no. 1 (February 2019): 69–80. http://dx.doi.org/10.1109/jcn.2019.000007.

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Jiang, Qian, and Li Yang Yu. "TEAP: A Traffic Jam Early Alert Protocol in VANET." Applied Mechanics and Materials 416-417 (September 2013): 1978–82. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.1978.

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Every day, a vast number of drivers are suffering from traffic jams around the world. The intelligent transport system can be used to reduce traffic jams. In this paper, we proposed a traffic jam early alert protocol (TEAP) which could propagate the alert information of traffic jam to drivers through the VANET as soon as possible. The early alert information could help the drivers avoid the jammed area. With the TEAP, the alert information including the position of the event would be transmitted immediately along the roads by unicast once a traffic jam happened while broadcast would be used when the message travelled by the crosses of roads so that all the vehicles possible drive into the spot of the accidents would get the information early. Besides, the oncoming vehicles would help disseminating the information. The simulations showed TEAP improved the packets successful delivery apart from rapid disseminating information.

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Qu, Zi Hui, Chen Qi, and Hua Qiang Zhang. "A Comprehensive Multi-Mode Traffic Information Service Platform for Pedestrian and Bicycle Traffic." Applied Mechanics and Materials 241-244 (December 2012): 2095–99. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.2095.

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Slow traffic accounts for a great part of urban transportation, and is drawn more and more attention. However, the service system for this kind of traffic is rather inadequate, which seriously hampers the construction of smart city and digital urban. In this paper, beginning with the characteristics of slow travel persons, we design a multi-mode traffic information service platform for pedestrians and bicycle system specially. In our platform, non-interactive facilities for slow traffic are designed and deployed oriented pedestrians and cyclists. To provide customized information meeting pedestrians’ various demands and allow users’ feedback, the interactive service platform based intelligent mobile terminals and mobile internet is introduced instead of current electronic inquire equipments settled in public.

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Zhou, Li. "Cloud Computing Research Vehicle Traffic Information Service System Based on Network." Applied Mechanics and Materials 727-728 (January 2015): 944–47. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.944.

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In vehicle network under the cloud computing environment model of traffic information service system construction as the goal, the use of cloud computing technology and service oriented software architecture is divided into thought, differentiation and security mechanism from the service account, complete vehicle based on cloud computing network traffic information service system of the letter of the architecture design, function design, software structure design. Based on the geographical space cloud services, cloud services based car networking function, constructing high performance, scalable, supporting differentiated information service system. The research results show that: cloud computing car network traffic information service collaborative system can greatly improve the level of intelligent, personalized information service based on traffic, the user required service supply pertinence increased significantly； system can provide traffic information service more safe and reliable for vehicle network users of the service coordination, which helps to guarantee Intelligent Transportation and efficient operation.

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Wei, Po-Ting, Tai-Chi Wang, Shih-Yu Chang, and Yeh-Ching Chung. "Computing Traffic Information in the Cloud." International Journal of Grid and High Performance Computing 6, no. 1 (January 2014): 21–37. http://dx.doi.org/10.4018/ijghpc.2014010102.

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Vehicular ad hoc networks have been envisioned to be useful in road safety and commercial applications. In addition, in-vehicle capabilities could be used as a service to provide a variety of applications, for example, to provide real-time junction view of road intersections or to address traffic status for advanced traffic light control. In this work, the authors construct a cloud service over vehicular ad hoc networks to provide event data including capturing videos or Global Positioning System (GPS) data. Moreover, the authors integrate the GPS receiver and the navigation software equipped over On Board Unit to create a Geographic Information System digital map and to offer a traffic safety application. The hardware is implemented by Eeepad for integrating camera and GPS. Furthermore, the cyclic recording scheme has been addressed for data transmission and query. With the design, people can get real-time traffic information including traffic videos or geographical data in the cloud.

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Duan, Zongtao, Jun Kang, Lei Tang, Na Fan, Hao Cheng, and Mingming Lu. "Early Warning of Highway Traffic Safety Information Service System." Information Technology Journal 12, no. 16 (August 1, 2013): 3849–54. http://dx.doi.org/10.3923/itj.2013.3849.3854.

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Kim, Dong-Won. "Performance Analysis of Traffic Information Service Based on VANET." Journal of the Institute of Webcasting, Internet and Telecommunication 12, no. 3 (June 30, 2012): 149–53. http://dx.doi.org/10.7236/jiwit.2012.12.3.149.

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Tang, Jin Peng, and Ling Lin Li. "Big Data Sensing Information Processing Platform for Intelligent Traffic." Applied Mechanics and Materials 667 (October 2014): 324–27. http://dx.doi.org/10.4028/www.scientific.net/amm.667.324.

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Analysis of the intelligent traffic service platform system structure and key technology of cloud computing, proposed mass sensing information processing scheme based on the intelligent traffic service platform. First the scheme proposed system architecture, designed a multiple functional unit modules of the system, through the combination of these functional unit can realize the configured service for tens of thousands of service and tenants. Then, the system adopts Hadoop open source framework for distributed computing. Finally, the system is realized in the intelligent transportation service.

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Prinzo, O. Veronika. "Automatic Dependent Surveillance--Broadcast/Cockpit Display of Traffic Information: Innovations in Pilot-Managed Departures." International Journal of Aviation Psychology 14, no. 2 (April 2004): 171–89. http://dx.doi.org/10.1207/s15327108ijap1402_4.

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41

Ullah, Rehmat, Muhammad Atif Ur Rehman, and Byung Seo Kim. "Hierarchical Name-Based Mechanism for Push-Data Broadcast Control in Information-Centric Multihop Wireless Networks." Sensors 19, no. 14 (July 10, 2019): 3034. http://dx.doi.org/10.3390/s19143034.

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By design, Named Data Networking (NDN) supports pull-based traffic, where content is retrieved only upon consumer request. However, some of the use cases (i.e., emergency situations) in the Internet of Things (IoT) requires push-based traffic, where a producer broadcasts the data based on the emergency situation without any consumer request. Therefore, it is necessary to modify the existing NDN forwarding engine when designing for an IoT scenario. Although solutions are provided to enable push-based traffic in IoT, the main solutions in the current literature lack data broadcast control design. Moreover, the existing solutions use an additional interest messages exchange, which creates extra overheads in the network, thereby resulting in higher delay and lower throughput. In this paper, therefore, we propose a name-based push-data broadcast control scheme for IoT systems, and consider two scenarios, i.e., smart buildings and vehicular networks. The proposed scheme consists of a robust content namespace design, device namespace design, and minor amendments to the data packet format and unsolicited data policy of the forwarding engine as well. The evaluation is carried out for both scenarios. Simulation experiments show that the proposed scheme outperforms the recent proposed schemes in terms of total number of data packets processed in the network, total energy consumption, and average delay in the network by varying the number of data packets per 2 s and varying vehicle speed.

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Wang, Wenjie, Tao Luo, and Hongxia Kang. "A Local Information Sensing-Based Broadcast Scheme for Disseminating Emergency Safety Messages in IoV." Mobile Information Systems 2019 (February 3, 2019): 1–11. http://dx.doi.org/10.1155/2019/8278904.

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Internet of Vehicle (IoV) is playing an increasingly important role in constructing an Intelligent Transport System (ITS) of safety, efficiency, and green. Safety applications such as emergency warning and collision avoidance require high reliability and timeliness for data transmission. In order to address the problems of slow response and local broadcast storm commonly existing among waiting-based relay schemes of emergency messages, a local topology information sensing technology-based broadcast (LISCast) protocol is proposed in this paper, making use of the advantage of probability-based forwarding scheme in redundancy inhibition. According to the beacon broadcasted periodically between vehicles, LISCast collects information about number and distribution of neighbor, from which the characteristic information such as effective candidate number, maximum forwarding distance, and global traffic density are extracted. Through embedding the characteristic information into the head of broadcast packets by the message sender for assisting in making relay decision, the alternative receivers uniformly schedule forwarding priorities in a distributed and adaptive way. LISCast works without the help of a roadside unit and generates a little more overhead. The simulation results show that LISCast improves the ability to adapt to dynamic topology by optimizing the performance of delay, redundancy, and broadcast efficiency upon the condition of satisfying the high level of transmission reliability.

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Liu, Sheng Rui. "Design and Implementation of the Highway Traffic Safety Early Warning Information Service System." Applied Mechanics and Materials 727-728 (January 2015): 717–20. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.717.

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This paper is aimed to establish to car networking as the foundation, a new traffic information service system in large data environment, the system is built based on vehicle network, meaning lies in providing the expressway traffic safety early-warning information services, further improve the quality of service of freeway traffic warning information and intelligence level. In this system, also conducted a small scale experimental validation, test showed that the effect of new application of traffic information service system is good. The system helps to ensure transportation safety and efficient operation for car, Internet users more traffic information service of intelligent and personalized.

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Wang, Jen-Ya. "A Transformation Technique for Scheduling Broadcast Programs of Multiple-Item Queries." International Journal of Grid and High Performance Computing 4, no. 4 (October 2012): 52–67. http://dx.doi.org/10.4018/jghpc.2012100104.

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In wireless environments, many mobile users may raise queries for accessing multiple data items, e.g., stock information or traffic condition, simultaneously. Most queries are identical. That is, many users may have an interest in some popular data items. Because data broadcast can offer unlimited users shareable information at the same time, a broadcast server is usually employed to disseminate all the data items periodically. Intuitively, popular data items should be scheduled and transmitted to users more efficiently than ordinary ones, so these users can thus save access time. To improve customer satisfaction, the author considers a broadcast program scheduling problem in such an environment and aims to minimize mobile users’ worst access time as well as their battery power consumption by generating near-optimal broadcast programs. The author provides theoretical analysis as a foundation of mapping the problem to another domain (i.e., from unit item to unit fragment) and this transformation makes the problem easy to solve. Moreover, an O(N logN) algorithm is proposed for this NP-hard problem. Finally, experimental results show that access time can be reduced by carefully scheduling broadcast programs. It suggests that other similar optimization problems can be solved similarly.

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Olaverri-Monreal, Cristina, Javier Errea-Moreno, and Alberto Díaz-Álvarez. "Implementation and Evaluation of a Traffic Light Assistance System Based on V2I Communication in a Simulation Framework." Journal of Advanced Transportation 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/3785957.

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Cooperative Intelligent Transportation Systems (C-ITS) make the exchange of information possible through cooperative systems that broadcast traffic data to enhance road safety. Traffic light assistance (TLA) systems in particular utilize real-time traffic light timing data by accessing the information directly from the traffic management center. To test the reliability of a TLA system based on networked intervehicular interaction with infrastructure, we present in this paper an approach to perform theoretical studies in a lab-controlled scenario. The proposed system retrieves the traffic light timing program within a range in order to calculate the optimal speed while approaching an intersection and shows a recommended velocity based on the vehicle’s current acceleration and speed, phase state of the traffic light, and remaining phase duration. Results show an increase in driving efficiency in the form of improvement of traffic flow, reduced gas emissions, and waiting time at traffic lights after the drivers adjusted their velocity to the speed calculated by the system.

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Kim, Kwangseob, and Doohee Nam. "Web Service for Traffic Information Using Focus+Context Visualization Technique." Journal of the Institute of Webcasting, Internet and Telecommunication 14, no. 2 (April 28, 2014): 101–6. http://dx.doi.org/10.7236/jiibc.2014.14.2.101.

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董, 健. "The Bus Arrival Time Service Based on Dynamic Traffic Information." Hans Journal of Wireless Communications 02, no. 04 (2012): 90–96. http://dx.doi.org/10.12677/hjwc.2012.24017.

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Temerinac, Miodrag, Peter Bragas, and Aleksandar Markovic. "Hardware Topics of an MF-AM Traffic Information Broadcasting Service." IEEE Transactions on Broadcasting BC-32, no. 2 (June 1986): 27–34. http://dx.doi.org/10.1109/tbc.1986.266588.

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Fang, Yu, Chang Jun Jiang, and Zhao Hui Zhang. "A mobile navigation service platform based on traffic information grid." International Journal of Services Operations and Informatics 1, no. 1/2 (2006): 23. http://dx.doi.org/10.1504/ijsoi.2006.010187.

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Samper Zapater, J. Javier, Dolores M. Llidó Escrivá, Francisco R. Soriano García, and Juan José Martínez Durá. "Semantic web service discovery system for road traffic information services." Expert Systems with Applications 42, no. 8 (May 2015): 3833–42. http://dx.doi.org/10.1016/j.eswa.2015.01.005.

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Journal articles on the topic 'Traffic Information Service Broadcast'

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