Journal articles: 'Transportation and communications'

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Kempton, Steven B. "Transportation and Communications." Ocean Yearbook Online 14, no. 1 (2000): 232–50. http://dx.doi.org/10.1163/221160000x00143.

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Briso-Rodríguez, César, Ke Guan, Yin Xuefeng, and Thomas Kürner. "Wireless Communications in Smart Rail Transportation Systems." Wireless Communications and Mobile Computing 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/6802027.

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Railway, subway, airplane, and other transportation systems have drawn an increasing interest on the use of wireless communications for critical and noncritical services to improve performance, reliability, and passengers experience. Smart transportation systems require the use of critical communications for operation and control, and wideband services can be provided using noncritical communications. High speed train (HST) is one of the best test cases for the analysis of communication links and specification of the general requirements for train control and supervision, passenger communications, and onboard and infrastructure wireless sensors. In this paper, we analyze in detail critical and noncritical networks mainly using the HST as a test case. First, the different types of links for smart rail transportation are described, specifying the main requirements of the transportation systems, communications, and their applications for different services. Then, we propose a network architecture and requirements of the communication technologies for critical and noncritical data. Finally, an analysis is made for the future technologies, including the fifth-generation (5G) communications, millimeter wave (mmWave), terahertz (THz), and satellites for critical and high-capacity communications in transportation.

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Plaut, Pnina O. "Transportation-communications relationships in industry." Transportation Research Part A: Policy and Practice 31, no. 6 (November 1997): 419–29. http://dx.doi.org/10.1016/s0965-8564(96)00036-5.

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Briso-Rodríguez, César, Ke Guan, Thomas Kurner, and Yin Xuefeng. "Wireless Communications in Transportation Systems." Wireless Communications and Mobile Computing 2017 (2017): 1–2. http://dx.doi.org/10.1155/2017/4391402.

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Hendiyanto and Isnawijayani. "Analisis Komunikasi Beban Kerja Air Traffic Controller (ATC) dalam Menjaga Keselamatan Lalu Lintas Penerbangan di Airnav Indonesia Cabang Palembang." Jurnal Indonesia : Manajemen Informatika dan Komunikasi 5, no. 1 (January 10, 2024): 244–54. http://dx.doi.org/10.35870/jimik.v5i1.458.

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As a fast, economical and efficient transportation alternative, air transportation is the only alternative for inter-island and inter-regional transportation. Air transportation itself has Air Traffic or flight traffic which must be obeyed by all vehicles on the ground and in the air such as commercial airplanes, helicopters and the like. This research aims to investigate the role of communication in managing the Air Traffic Controller (ATC) workload in maintaining flight traffic safety at AirNav Indonesia Palembang Branch. Increasingly dense and complex air traffic requires effective coordination and communication between ATC and aircraft pilots to prevent incidents and accidents. The research method uses a qualitative approach involving in-depth interviews with ATC, observations at the air traffic control center, and analysis of related documents. The results of this research reveal that good communication between ATC and pilots is very important in maintaining flight safety. ATCs must manage their workload carefully, including managing communications as diverse as voice communications, text messages, and radar data. Additionally, factors such as time pressure, fatigue, and stress also influence ATC communications. Workload management and good training to improve ATC communication capabilities are necessary. This study also provides recommendations for developing policies and best practices in optimizing ATC communications in maintaining flight safety at AirNav Indonesia Palembang Branch.

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van Tielhof, Milja. "Communications." International Journal of Maritime History 15, no. 2 (December 2003): 362. http://dx.doi.org/10.1177/084387140301500218.

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Liu, Yu, François Dion, and Subir Biswas. "Dedicated Short-Range Wireless Communications for Intelligent Transportation System Applications." Transportation Research Record: Journal of the Transportation Research Board 1910, no. 1 (January 2005): 29–37. http://dx.doi.org/10.1177/0361198105191000104.

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In efforts to reduce traffic accidents and improve the efficient utilization of existing transportation networks, increasing attention is being given to the use of wireless communications between vehicles and roadside equipment to develop new intelligent transportation system (ITS) applications that can help improve the safety of transportation networks and reduce urban congestion. Of particular interest for the development of such applications are the currently proposed dedicated short-range communication (DSRC) wireless standards. This paper aims to provide transportation researchers and engineers with an introduction to these standards. The paper presents the current mobile wireless communication applications and standards, the various DSRC standards that have been proposed, their potential use in ITS applications, their envisioned implementation benefits, and the remaining research needs.

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Sanguesa, Julio A., Fernando Naranjo, Vicente Torres-Sanz, Manuel Fogue, Piedad Garrido, and Francisco J. Martinez. "On the Study of Vehicle Density in Intelligent Transportation Systems." Mobile Information Systems 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/8320756.

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Vehicular ad hoc networks (VANETs) are wireless communication networks which support cooperative driving among vehicles on the road. The specific characteristics of VANETs favor the development of attractive and challenging services and applications which rely on message exchanging among vehicles. These communication capabilities depend directly on the existence of nearby vehicles able to exchange information. Therefore, higher vehicle densities favor the communication among vehicles. However, vehicular communications are also strongly affected by the topology of the map (i.e., wireless signal could be attenuated due to the distance between the sender and receiver, and obstacles usually block signal transmission). In this paper, we study the influence of the roadmap topology and the number of vehicles when accounting for the vehicular communications capabilities, especially in urban scenarios. Additionally, we consider the use of two parameters: the SJ Ratio (SJR) and the Total Distance (TD), as the topology-related factors that better correlate with communications performance. Finally, we propose the use of a new density metric based on the number of vehicles, the complexity of the roadmap, and its maximum capacity. Hence, researchers will be able to accurately characterize the different urban scenarios and better validate their proposals related to cooperative Intelligent Transportation Systems based on vehicular communications.

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Yang, Qingyan, Virginia Sisiopiku, Jim A. Arnold, Paul Pisano, and Gary G. Nelson. "Assessment of Rural Intelligent Transportation System Wireless Communications Solutions." Transportation Research Record: Journal of the Transportation Research Board 1739, no. 1 (January 2000): 51–58. http://dx.doi.org/10.3141/1739-07.

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Rural transportation systems have different features and needs than their urban counterparts. To address safety and efficiency concerns in rural environments, advanced rural transportation systems (ARTS) test and deploy appropriate intelligent transportation systems (ITS) technologies, many of which require communication support. However, wireless communication systems that currently serve urban areas often are not available or suitable in rural environments. Thus, a need exists to identify communication solutions that are likely to address successfully the needs and features of ARTS applications. Current and emerging wireless communications systems and technologies have been systematically assessed with respect to rural ITS applications. Wireless communication functions associated with rural ITS functions are first identified. Then requirements for applicable communication technologies in the rural environment are defined. Existing and emerging wireless communication systems and technologies are reviewed and evaluated by a systematic process of assessing rural ITS wireless solutions. Finally, recommendations for future research and operational tests are offered. The analysis results are expected to benefit rural ITS planners by identifying suitable wireless solutions for different rural contexts.

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Auza, Pierre M., Diana C. Lavery, R. Jayakrishnan, and Yuko J. Nakanishi. "Telecom, Traffic Cones, and the Big One: Identifying Transportation and Communications Emergency Support Workforces and Calculating Their Exposure to Seismic Peak Ground Accelerations." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 1 (August 19, 2018): 113–24. http://dx.doi.org/10.1177/0361198118787937.

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Successful post-disaster response and recovery depends on prompt restoration of infrastructure, including transportation or communications. However, disasters can have an impact on the workforce responsible for restoration, for example, by damaging their homes. This study has two goals: 1. Identify workers potentially participating in restoring transportation and communications infrastructure; 2. Calculate these workers’ exposure to the peak ground accelerations (PGAs) of a 7.8 magnitude earthquake in a Southern California scenario, and compare it with the rest of the working population’s exposure. Four steps are required. First, calculate the mean PGA for each affected public use microdata area (PUMA). Second, identify the infrastructure restoration workforce by specifying Standard Occupational Classification (SOC) and North American Industry Classification System (NAICS) codes. When specifying, use the Emergency Support Function (ESF) Annexes for Transportation (ESF#1) and Communications (ESF#2) to clarify workers’ roles and responsibilities. This ESF-specific listing of codes is a novel contribution. Third, via frequency table, calculate the mean and standard deviation of transportation and communications workers’ exposure to PGAs in their PUMAs of residence. Finally, test the difference in mean PGA exposures between two populations: (a) transportation or communications workers and (b) the rest of the working population. This study finds that, for this scenario, transportation workers are exposed to statistically significant higher PGAs than non-transportation workers, and communication workers to significantly lower PGAs. For practitioners, knowing which worker categories a disaster disproportionately affects could justify pre-event investments in workforce preparedness and recovery planning efforts.

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Qu, Xiaobo, and Shuaian Wang. "Communications in Transportation Research: Vision and scope." Communications in Transportation Research 1 (December 2021): 100001. http://dx.doi.org/10.1016/j.commtr.2021.100001.

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Benbassat, Danny, and Levent Ileri. "Next Generation Air Transportation System: Data Communications." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 54, no. 1 (September 2010): 114–15. http://dx.doi.org/10.1177/154193121005400125.

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Yogarayan, Sumendra, Siti Fatimah Abdul Razak, Mohd Fikri Azli Abdullah, Afizan Azman, Vethanayagi Arultas, and Suneetha Sri Raman. "Comparative performance study of HC-12, nRF24L01, and XBee for vehicular communication." International Journal of Informatics and Communication Technology (IJ-ICT) 12, no. 1 (April 1, 2023): 54. http://dx.doi.org/10.11591/ijict.v12i1.pp54-61.

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In recent times, the volume of traffic congestion has been rapidly growing on roads. These days the necessity of having safe transportation and journey is essential. Thus, vehicle communication could be a possible solution to enhance safe transit. Vehicular communications provide a wide range of applications with different characteristics, namely vehicle and vehicle (V2V) communications. Every year, traffic accidents kill many people worldwide, and many people have been injured. V2V communication enables vehicles to communicate with each other to provide safety and convenience to drivers. Therefore, this paper explores a direction to develop a conceptual approach to V2V communication with HC-12, nRF24L01, and XBee. The study aims to analyse and evaluate the communication range that may contribute to the future road transportation system.

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Cantwell, Vincent, and Gerry E. Mille. "Risk and Hazard Communication In The Marine Oil Transportation Environment." International Oil Spill Conference Proceedings 1999, no. 1 (March 1, 1999): 1147–51. http://dx.doi.org/10.7901/2169-3358-1999-1-1147.

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ABSTRACT An important element in the prevention of marine oil spills, accidents, and injury, is the effective communication of the risks and hazards present. Risk and hazard communication is typically accomplished through the application of labels, signs, markers, graphics, color codes, and through other warning or alarm devices. The type, size, physical characteristics, content, and placement of risk and hazard communication devices is directly related to the utility, persistence, and effectiveness of the intended message. The precise selection of words, phrases, and characters directly impacts the intelligibility and comprehension of the risk or hazard being identified. Confidence and compliance levels of those to which the message is directed, are also affected by poorly designed, worded, or placed visual and audible signals. Regulations requiring or defining the content of risk communications do not adequately account for these factors. Risk and hazard communications are further complicated by cultural factors. Current trends in vessel construction and manning will only exacerbate these issues. Guidelines have been published for hazard and risk communication devices, equipment, and marine systems. This guidance should be used to evaluate and improve risk and hazard communication however possible. The goal of risk and hazard communication should be to promote or support Situation Awareness, (SA). Education should be conducted in the proper interpretation, application, and maintenance of communication devices.

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Seymour, Edward J., and Raman K. Patel. "Critical Issues Facing Deployment of National Transportation Communications for Intelligent Transportation System Protocols." Transportation Research Record: Journal of the Transportation Research Board 1683, no. 1 (January 1999): 1–7. http://dx.doi.org/10.3141/1683-01.

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Carmichael, Gary J., and J. R. Tomasso. "Communications: Survey of Fish Transportation Equipment and Techniques." Progressive Fish-Culturist 50, no. 3 (July 1988): 155–59. http://dx.doi.org/10.1577/1548-8640(1988)050<0155:csofte>2.3.co;2.

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Stephanedes, Y. J., C. Douligeris, and S. Takaba. "Guest editorial: Communications for the intelligent transportation system." IEEE Communications Magazine 34, no. 10 (October 1996): 24. http://dx.doi.org/10.1109/mcom.1996.544320.

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Qu, Fengzhong, Fei-Yue Wang, and Liuqing Yang. "Intelligent transportation spaces: vehicles, traffic, communications, and beyond." IEEE Communications Magazine 48, no. 11 (November 2010): 136–42. http://dx.doi.org/10.1109/mcom.2010.5621980.

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Mitchelson, Ronald L., Timothy C. Pitts, Andrew J. Curtis, and Kevin L. Calhoun. "The Changing South: Transportation and Communications Since 1947." Southeastern Geographer 37, no. 2 (1997): 268–94. http://dx.doi.org/10.1353/sgo.1997.0022.

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Fischer, Lewis R., and Olaf U. Janzen. "Communications: Apologies and Corrections." International Journal of Maritime History 16, no. 2 (December 2004): 314. http://dx.doi.org/10.1177/084387140401600214.

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Arena, Fabio, Giovanni Pau, and Alessandro Severino. "A Review on IEEE 802.11p for Intelligent Transportation Systems." Journal of Sensor and Actuator Networks 9, no. 2 (April 26, 2020): 22. http://dx.doi.org/10.3390/jsan9020022.

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Road safety is an active area of research for the automotive industry, and certainly one of ongoing interest to governments around the world. The intelligent transportation system (ITS) is one of several viable solutions with which to improve road safety, where the communication medium (e.g., among vehicles and between vehicles and the other components in an ITS environment, such as roadside infrastructure) is typically wireless. A typical communication standard adopted by car manufacturers is IEEE 802.11p for communications. Thus, this paper presents an overview of IEEE 802.11p, with a particular focus on its adoption in an ITS setting. Specifically, we analyze both MAC and PHY layers in a dedicated short-range communication (DSRC) environment.

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Seymour, Edward J., and Raman K. Patel. "Evolving Interoperability with National Transportation Communication for Intelligent Transportation Systems Protocols." Transportation Research Record: Journal of the Transportation Research Board 1651, no. 1 (January 1998): 117–23. http://dx.doi.org/10.3141/1651-17.

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One of the most exciting developments in the intelligent transportation systems (ITS) industry—one that holds so much promise for the future—is the National Transportation Communications for ITS Protocols (NTCIP). NTCIP will help lead the way to achieve a cost-effective deployment and management of ITS applications. It will also influence the design and manufacturing process and should cause changes in the way system integrators do their work. The resulting interoperability of core functionality between transportation devices will be an enabling service for ITS deployment. Developmental efforts, the implications of NTCIP, and the resulting interoperability for transportation applications are reported. The framework of the NTCIP is described and device level interoperability is discussed. NTCIP makes an effort to fulfill the initial needs for interoperable and interchangeable field devices. Current developments of the NTCIP effort are described and interoperability features are identified.

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Pau, Giovanni, Alessandro Severino, and Antonino Canale. "Special Issue “New Perspectives in Intelligent Transportation Systems and Mobile Communications towards a Smart Cities Context”." Future Internet 11, no. 11 (October 28, 2019): 228. http://dx.doi.org/10.3390/fi11110228.

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Intelligent transportation solutions and smart information and communication technologies will be the core of future smart cities. For this purpose, these topics have captivated noteworthy interest in the investigation and construction of cleverer communication protocols or the application of artificial intelligence in the connection of in-vehicle devices by wireless networks, and in in-vehicle services for autonomous driving using high-precision positioning and sensing systems. This special issue has focused on the collection of high-quality papers aimed at solving open technical problems and challenges typical of mobile communications for Intelligent Transportation Systems.

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Sachin Kumar, Sachin Kumar, Agam Damaraju Sachin Kumar, Aditya Kumar Agam Damaraju, Saru Kumari Aditya Kumar, and Chien-Ming Chen Saru Kumari. "LSTM Network for Transportation Mode Detection." 網際網路技術學刊 22, no. 4 (July 2021): 891–902. http://dx.doi.org/10.53106/160792642021072204016.

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Yang, Qiang. "One Early Warning and Traffic Control Method for Satellite Communication System and the Implement of Time Prediction Algorithm." Journal of Physics: Conference Series 2136, no. 1 (December 1, 2021): 012033. http://dx.doi.org/10.1088/1742-6596/2136/1/012033.

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Abstract This article introduces an early warning and control method of user satellite communication traffic applied to satellite communication system. Due to the high communication cost of transportation satellites, in order to avoid high communication bills, the full-service ability to collect call data records (CDR) by Transportation Satellite Business Support System is required to provide early warning and business control over the four dimensions of voice, data, text messages, and package fees for satellite communications. At the same time, the system predicts the typical user behavior through the time series prediction Prophet algorithm, which serves as the default reminder rule to achieve full coverage of users.

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Ilcev, Dimov Stojce. "From wooden pigeons to Telstar: Precursors of modern maritime satellite communications." International Journal of Maritime History 31, no. 1 (February 2019): 137–44. http://dx.doi.org/10.1177/0843871418824954.

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This research note identifies the precursors of the satellite communications systems that are basic to modern shipping activity. It comprises two main sections: first, an outline is provided of the evolution of communication technology from the earliest experiments in rockets in the fifth century BC to the 1950s; second, there is a discussion of the significant development of satellite technology in the 1960s and 1970s.

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Zemrane, Hamza, Youssef Baddi, and Abderrahim Hasbi. "Mobile Ad Hoc Network Routing Protocols for Intelligent Transportation Systems." International Journal of Smart Security Technologies 8, no. 1 (January 2021): 35–48. http://dx.doi.org/10.4018/ijsst.2021010103.

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Nowadays, the use of wireless technology has invaded the market of telecommunications networks. There are two main families of wireless networks: networks with infrastructure and networks without infrastructure or AdHoc. In the networks with infrastructure, communications are made via a fixed base station; however, communications in an AdHoc network occur in the absence of any fixed communication infrastructure. There are three types of AdHoc networks: mobile AdHoc networks, mesh networks, and sensor networks. This research applied the mobile AdHoc network to the intelligent transportation systems that improve the traditional transport system with reducing the risk of human errors and with the effective management of traffic congestion. The authors focus in the work especially on the routing protocols inside the MANETs to come out with four routing protocols (AODV, OLSR, DSR, and TORA), and this paper compared their performances in case of using HTTP application, FTP application, email application, voice application, and the rate of the routing control traffic.

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BANISTER, DAVID, and DOMINIC STEAD. "Impact of information and communications technology on transport." Transport Reviews 24, no. 5 (September 2004): 611–32. http://dx.doi.org/10.1080/0144164042000206060.

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An, Chang, and Celimuge Wu. "Traffic big data assisted V2X communications toward smart transportation." Wireless Networks 26, no. 3 (November 7, 2019): 1601–10. http://dx.doi.org/10.1007/s11276-019-02181-6.

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Zeng, Daniel, Sudarshan S. Chawathe, Hua Huang, and Fei-Yue Wang. "Protecting Transportation Infrastructure." IEEE Intelligent Systems 22, no. 5 (September 2007): 8–11. http://dx.doi.org/10.1109/mis.2007.4338487.

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Merzougui, Salah Eddine, Xhulio Limani, Andreas Gavrielides, Claudio Enrico Palazzi, and Johann Marquez-Barja. "Leveraging 5G Technology to Investigate Energy Consumption and CPU Load at the Edge in Vehicular Networks." World Electric Vehicle Journal 15, no. 4 (April 19, 2024): 171. http://dx.doi.org/10.3390/wevj15040171.

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The convergence of vehicular communications, 5th generation mobile network (5G) technology, and edge computing marks a paradigm shift in intelligent transportation. Vehicular communication systems, including Vehicle-to-Vehicle and Vehicle-to-Infrastructure, are integral to Intelligent Transportation Systems. The advent of 5G enhances connectivity, while edge computing brings computational processes closer to data sources. This synergy holds the potential to revolutionize transportation efficiency and safety. This research investigates vehicular communication and edge computing dynamics within a 5G network, considering varying distances between On Board Units and Roadside Units. Energy consumption patterns and CPU load at the RSU are analyzed through meticulous real-world experiments and simulations. Our results show stable energy consumption at shorter distances, with fluctuations increasing at greater ranges. CPU load correlates with communication distance, highlighting the need for adaptive algorithms. While experiments exhibit higher variability, our simulations validate these findings, emphasizing the importance of considering transmission range in vehicular communication network design.

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Ilcev, Stojce Dimov. "The development of maritime radio communications." International Journal of Maritime History 30, no. 3 (August 2018): 536–43. http://dx.doi.org/10.1177/0843871418784240.

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This paper provides an historical review of maritime mobile radio communications systems as a primary means of ensuring the safety and security of ships at sea. Safety at sea has always been a priority for seamen and shippers. Distress alerts at sea caused by the blind forces of Mother Nature or, more commonly, by human factors have occurred over many centuries, as seafarers often set sail with inadequate information about their course, navigation and weather conditions. Until the late nineteenth century, only audio and visual transfers of information from point to point were used. From then on, however, new methods, such as news and information via wire and then by radio communications systems, were introduced. So long as safety standards are met, it is also important to test innovations and technology transfer to develop devices that are more reliable than mobile radio communications.

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Ilcev, Dimov Stojce. "The development of maritime satellite communications since 1976." International Journal of Maritime History 31, no. 1 (February 2019): 145–56. http://dx.doi.org/10.1177/0843871418824955.

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This research note runs on from the note published by the author in this issue of IJMH. It describes the development of Maritime Satellite Communications (MSC) systems for all type of commercial and military seagoing and inland sailing vessels since the 1970s. The main functions of MSC systems are to enhance the safety and security of seagoing vessels, mainly by alerting and Search and Rescue (SAR) operations, and to improve communication facilities between ships and shore infrastructures. The first MSC Geostationary Earth Orbit (GEO) system for military applications was developed in 1976 by the US and other partners, which soon became available for merchant ships. The next step was the development of an independent and international MSC system. To overcome the disadvantages associated with HF/VHF radio propagation and frequency congestions, the International Maritime Organization (IMO) in 1979 encouraged all member nations to establish Maritime Mobile Satellite Communication (MMSC) systems. At the behest of IMO and United Nations (UN) Maritime Body, and pursuant to the Convention on the International Maritime Satellite Organization, signed by 28 countries in 1976, the International Maritime Satellite (INMARSAT) Organization was founded.

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Brown, Lori J. "NextGen Technologies Shape the Future of Aviation." International Journal of Aviation Technology, Engineering and Management 1, no. 2 (July 2011): 46–57. http://dx.doi.org/10.4018/ijatem.2011070103.

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Today, wireless technology forms the communications backbone of many industries—including aviation, transportation, government, and defense. The era of the Next Generation Air Transportation System, (NextGen), is upon us. The Federal Aviation Administration, in collaboration with industry, is deploying NextGen technology on the ground, in the air, at air traffic control facilities and in the cockpit. These new technologies in aviation represent a global, transformative change. NextGen blends new and existing technologies, including satellite navigation and digital communications, to improve safety outcomes, increase on time performance, offer reduced fuel burn and positively impact aviation's adverse environmental concerns. Significant growth in technologies like global connectivity and cloud computing over the last few years has begun to unlock potential for seamless wireless communications, improved training processes, real-time weather and navigational displays. While technology has spurred improvements in aviation, basic hands-free wireless communication between flight attendants and pilots is still viewed as inadequate by industry professionals.

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Bhaskara, Wahyu Wira, M. Arif Sulaiman, Eriyandi, and Meily Carolina Fadila. "ANALISIS TRANSMISSION FAILURE PADA RCU T6M PAE SEBAGAI BACKUP RADIO APP PRIMARY 120.8 MHZ." Teknika STTKD: Jurnal Teknik, Elektronik, Engine 10, no. 1 (May 24, 2024): 85–90. http://dx.doi.org/10.56521/teknika.v10i1.1097.

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Indonesia is an archipelagic country consisting of a group of large and small islands. Therefore, air transportation is needed to support good economic growth. Air transportation services must be balanced with good flight navigation services. The Indonesian government established Airnav Indonesia as an aviation navigation service agency in Indonesia. All aviation navigation and communication services in Indonesia are served by Airnav Indonesia. When communicating in the world of aviation, of course you must have facilities that support aviation communications. Aviation communication equipment facilities have an important role in assisting air traffic controllers in providing flight services. The author found damage to the T6M RCU which was used as a backup for the Primary VHF OTE APP radio. During inspection, it was discovered that the T6M RCU was unable to transmit. After analyzing the problem, the author takes corrective steps. Flight communications equipment must always be in normal condition to support flight navigation services

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Jiang, Wenyi, Ke Guan, Zhangdui Zhong, Bo Ai, Ruisi He, Binghao Chen, Yuanxuan Li, and Jia You. "Propagation and Wireless Channel Modeling Development on Wide-Sense Vehicle-to-X Communications." International Journal of Antennas and Propagation 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/981281.

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The need for improving the safety and the efficiency of transportation systems has become of extreme importance. In this regard, the concept of vehicle-to-X (V2X) communication has been introduced with the purpose of providing wireless communication technology in vehicular networks. Not like the traditional views, the wide-sense V2X (WSV2X) communications in this paper are defined by including not only vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications but also train-to-X (T2X) communications constituted of train-to-train (T2T) and train-to-infrastructure (T2I) communications. All the information related to the wide-sense V2X channels, such as the standardization, scenarios, characters, and modeling philosophies, is organized and summarized to form the comprehensive understanding of the development of the WSV2X channels.

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Cekerevac, Zoran, and Slobodan Ristic. "Communications: The Way of Ransmitting Messages and Communication Skill." Communications - Scientific letters of the University of Zilina 8, no. 4 (December 31, 2006): 61–65. http://dx.doi.org/10.26552/com.c.2006.4.61-65.

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Shafer, Autumn, and Jared Macary. "Formative Research on Promoting Car-Free Youth Transportation." Journal of Public Interest Communications 4, no. 1 (May 22, 2020): 37. http://dx.doi.org/10.32473/jpic.v4.i1.p37.

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Car accidents are the leading cause of death among U.S. 10- to 24-year-olds (CDC, 2018). Motivating youth to drive less by choosing car-free mobility may reduce fatalities and contribute to positive environmental impact. Yet, little is known about how youth perceive car-free transportation or what may motivate them to choose it more often. Results from focus groups analyzed through the lens of the theory of planned behavior explore youth perceptions and experiences about car-free transportation. Perceived effectiveness of car-free messages also is presented. This study contributes to understandings of the theoretical underpinnings of an understudied area of public interest communications. Practical recommendations for strategic communication with youth about car-free transportation include appealing to their agency and autonomy and reinforcing their safety.

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Fadhil, Ali Muayed, Norashidah Md Din, Norazizah Binti Mohd Aripin, and Ali Ahmed Abed. "Advanced Privacy Scheme to Improve Road Safety in Smart Transportation Systems." International journal of Computer Networks & Communications 16, no. 2 (March 29, 2024): 71–86. http://dx.doi.org/10.5121/ijcnc.2024.16205.

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In -Vehicle Ad-Hoc Network (VANET), vehicles continuously transmit and receive spatiotemporal data with neighboring vehicles, thereby establishing a comprehensive 360-degree traffic awareness system. Vehicular Network safety applications facilitate the transmission of messages between vehicles that are near each other, at regular intervals, enhancing drivers' contextual understanding of the driving environment and significantly improving traffic safety. Privacy schemes in VANETs are vital to safeguard vehicles’ identities and their associated owners or drivers. Privacy schemes prevent unauthorized parties from linking the vehicle's communications to a specific real-world identity by employing techniques such as pseudonyms, randomization, or cryptographic protocols. Nevertheless, these communications frequently contain important vehicle information that malevolent groups could use to Monitor the vehicle over a long period. The acquisition of this shared data has the potential to facilitate the reconstruction of vehicle trajectories, thereby posing a potential risk to the privacy of the driver. Addressing the critical challenge of developing effective and scalable privacy-preserving protocols for communication in vehicle networks is of the highest priority. These protocols aim to reduce the transmission of confidential data while ensuring the required level of communication. This paper aims to propose an Advanced Privacy Vehicle Scheme (APV) that periodically changes pseudonyms to protect vehicle identities and improve privacy. The APV scheme utilizes a concept called the silent period, which involves changing the pseudonym of a vehicle periodically based on the tracking of neighboring vehicles. The pseudonym is a temporary identifier that vehicles use to communicate with each other in a VANET. By changing the pseudonym regularly, the APV scheme makes it difficult for unauthorized entities to link a vehicle's communications to its real-world identity. The proposed APV is compared to the SLOW, RSP, CAPS, and CPN techniques. The data indicates that the efficiency of APV is a better improvement in privacy metrics. It is evident that the AVP offers enhanced safety for vehicles during transportation in the smart city.

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Walton, Scott, and Eric Meyer. "Interpreting Cellular Coverage for Transportation Applications." Transportation Research Record: Journal of the Transportation Research Board 1826, no. 1 (January 2003): 32–36. http://dx.doi.org/10.3141/1826-05.

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The process was developed for collecting and analyzing cellular coverage data by applying the results of analysis to analog cellular coverage in the state of Kansas. The type of analysis that is appropriate depends on the purpose for which the information is to be used. Two types of analyses were examined—fixed coverage and mobile coverage. Fixed coverage analysis is needed for such functions as automatic collision notification in which any individual cellular connection can occur from a fixed location. The study showed that the fixed cellular coverage of the Kansas state highway system was good. Only 0.4% of the highway by length had inadequate signal strength for using a 3-W phone (a typical car phone) and 1.7% for using a 0.6-W phone (a typical handheld unit). In contrast, the mobile coverage analysis identified numerous areas where a call from a moving vehicle would be severely limited in duration. This type of analysis is needed for applications such as communications for emergency medical services, for which a vehicle must sustain continuous communications. For example, more than 9% of the state highways by length cannot sustain a call of 30 min with a 0.6-W phone, and in some areas the percentage is considerably higher. For certain applications, this difference may simply translate to inconvenience, but for other purposes it can be very important. The results of the two types of analyses highlight different characteristics of the coverage footprint; one addresses absolute coverage and the other continuity of coverage. The results of the analysis technique relate more directly to the unique characteristics of wireless communications utilization in transportation applications.

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ElGhanam, Eiman, Mohamed Hassan, Ahmed Osman, and Ibtihal Ahmed. "Review of Communication Technologies for Electric Vehicle Charging Management and Coordination." World Electric Vehicle Journal 12, no. 3 (June 28, 2021): 92. http://dx.doi.org/10.3390/wevj12030092.

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Recently, electric vehicles (EVs) have been introduced as an alternative method of transportation to help mitigate environmental issues, such as carbon emissions and fuel consumption, caused by conventional transportation systems. The implementation of effective EV charging systems is essential to motivate mass adoption of EVs. Accordingly, fast and reliable communications between the charging systems and the EVs are vital for efficient management of the charging process. Different radio access technologies (RATs) are discussed in the literature to enable communication between the highly mobile EVs and the charging subsystems, to collect and exchange information such as state of charge (SoC), users’ locations, and charging decisions between the different network entities. This information can be used to coordinate charging plans and select the optimal routes for moving vehicles. This paper presents a survey of existing literature on vehicular communications for EV charging coordination and management. The communication requirements and feasible communication technologies for vehicular communication are first discussed in details. A review of the physical layer security strategies is then presented and the role of the different RATs in EV charging coordination and management is described and studied.

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Hou, Junjun, Shitai Zhu, Ziwei Zhao, Jianlei Shen, Jie Chao, Jiye Shi, Jiang Li, Lihua Wang, Zhilei Ge, and Qian Li. "Programming cell communications with pH-responsive DNA nanodevices." Chemical Communications 57, no. 37 (2021): 4536–39. http://dx.doi.org/10.1039/d1cc00875g.

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Zhang, Wei, Shanyu Tang, Liping Zhang, Zhao Ma, and Jun Song. "Chaotic Stream Cipher-Based Secure Data Communications over Intelligent Transportation Network." International Journal of Antennas and Propagation 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/315721.

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Intelligent transportation systems (ITS) are advanced applications in which the transportation industry is adapted to the information technology revolution. As an important development direction of ITS, the electronic toll collection (ETC) subsystem, which enables an efficient and speedy toll collection, has gained widespread popularity in the world. In an ETC system, toll transaction data are transmitted over intelligent transportation networks, which is vulnerable to eavesdropping, interfering, and tampering attacks. To address the above security problems, we proposed a chaotic stream cipher-based cryptographic scheme to realise secure data communications over wireless sensor network (WSN), which is a part of ITS. The proposed cryptographic scheme allowed ITS to achieve key negotiation and data encryption between sensor nodes in the WSN, whileas reduced computational costs and power consumption. Security analysis and experimental results showed that the proposed scheme could protect data transmission between wireless sensor nodes from being attacked, and significantly reduced the communication overhead for the whole system compared to the existing ECC_AES scheme, thus satisfying the real-time data transmission requirement of ITS.

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Egorova, Tatiana, and Anna Mikhailovna Delakhova. "Elaboration of toolset for assessing differentiation of the level of transport accessibility of northern region." Теоретическая и прикладная экономика, no. 4 (April 2020): 81–94. http://dx.doi.org/10.25136/2409-8647.2020.4.34637.

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The subject of this research is the theory and practice of assessing transport accessibility of the territories of northern regions, where the absence of all-season overland communications render impossible their comparison and analysis. The common type of communications in northern regions are winter/ice roads, which are not usually included in analysis of infrastructure and transportation accessibility of a territory. Inclusion of the variable of seasonal communications is substantiated by the absences of alternatives in northern regions. The tools for assessing transport accessibility of the territory are developed using the integral index method, which allows determining the differentiation of variables of weighted average time and monetary costs on freight transportation. Such method based on the cost and time assessment of the transportation-logistical expenses allows accounting for changes in the transport complex, related to development of transportation network in the region, reflected on all stages of the logistical process. The developed methodological toolset is based on the classic methods of assessment of regional transportation system, while at the same time presents novelty, as it includes the presence of seasonal types of transportation communications in northern regions of the country and their logistical component, allowing to fully assess the peculiarities of transportation systems in the northern regions. The conducted analysis of the variables of the territorial structure of transportation network of the Sakha Republic (Yakutia) revealed heterogeneity in transport accessibility of municipal regions of the Sakha Republic. Results of the analysis of the level of differentiation of transport accessibility of municipalities through methods demonstrated a heterogenic differentiation, influenced by the vastness of the territories, low density of population, as well as sparseness of settlements of the Artic regions among number of other factors.

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Schmitz, Michelle M., Florina Serbanescu, George E. Arnott, Michelle Dynes, Paul Chaote, Abdulaziz Ally Msuya, and Yi No Chen. "Referral transit time between sending and first-line receiving health facilities: a geographical analysis in Tanzania." BMJ Global Health 4, Suppl 5 (August 2019): e001568. http://dx.doi.org/10.1136/bmjgh-2019-001568.

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BackgroundTimely, high-quality obstetric services are vital to reduce maternal and perinatal mortality. We spatially modelled referral pathways between sending and receiving health facilities in Kigoma Region, Tanzania, identifying communication and transportation delays to timely care and inefficient links within the referral system.MethodsWe linked sending and receiving facilities to form facility pairs, based on information from a 2016 Health Facility Assessment. We used an AccessMod cost-friction surface model, incorporating road classifications and speed limits, to estimate direct travel time between facilities in each pair. We adjusted for transportation and communications delays to create a total travel time, simulating the effects of documented barriers in this referral system.ResultsMore than half of the facility pairs (57.8%) did not refer patients to facilities with higher levels of emergency obstetric care. The median direct travel time was 25.9 min (range: 4.4–356.6), while the median total time was 106.7 min (22.9–371.6) at the moderate adjustment level. Total travel times for 30.7% of facility pairs exceeded 2 hours. All facility pairs required some adjustments for transportation and communication delays, with 94.0% of facility pairs’ total times increasing.ConclusionHalf of all referral pairs in Kigoma Region have travel time delays nearly exceeding 1 hour, and facility pairs referring to facilities providing higher levels of care also have large travel time delays. Combining cost-friction surface modelling estimates with documented transportation and communications barriers provides a more realistic assessment of the effects of inter-facility delays on referral networks, and can inform decision-making and potential solutions in referral systems within resource-constrained settings.

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Hsieh, Tang-Min, and Kai-Ying Chen. "Knowledge Development Trajectory of the Internet of Vehicles Domain Based on Main Path Analysis." Sensors 23, no. 13 (July 3, 2023): 6120. http://dx.doi.org/10.3390/s23136120.

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The Internet of vehicles (IoV) is an Internet-of-things-based network in the area of transportation. It comprises sensors, network communication, automation control, and data processing and enables connectivity between vehicles and other objects. This study performed main path analysis (MPA) to investigate the trajectory of research regarding the IoV. Studies were extracted from the Web of Science database, and citation networks among these studies were generated. MPA revealed that research in this field has mainly covered media access control, vehicle-to-vehicle channels, device-to-device communications, layers, non-orthogonal multiple access, and sixth-generation communications. Cluster analysis and data mining revealed that the main research topics related to the IoV included wireless channels, communication protocols, vehicular ad hoc networks, security and privacy, resource allocation and optimization, autonomous cruise control, deep learning, and edge computing. By using data mining and statistical analysis, we identified emerging research topics related to the IoV, namely blockchains, deep learning, edge computing, cloud computing, vehicular dynamics, and fifth- and sixth-generation mobile communications. These topics are likely to help drive innovation and the further development of IoV technologies and contribute to smart transportation, smart cities, and other applications. On the basis of the present results, this paper offers several predictions regarding the future of research regarding the IoV.

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Trofimova, L. S., N. V. Lovygina, and P. V. Kochubei. "Planning rolling stock operation in international communications with modern requirements to cargo transportation technology." Russian Automobile and Highway Industry Journal 20, no. 6 (January 5, 2024): 738–47. http://dx.doi.org/10.26518/2071-7296-2023-20-6-738-747.

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Introduction. The relevance of the research carried out is justified by the need to plan performance indicators of rolling stock in the context of changes in the technology of cargo transportation in international traffic when implementing the Draft Order of the Ministry of Transport of the Russian Federation. An obligatory element in the technology of cargo transportation is the re-coupling of a semi-trailer or reloading of cargo. In practice, there are additional costs for the transportation of goods due to the significant waiting time for interchange due to the deviation of the time of arrival of rolling stock transporting goods in international traffic to the interchange point in accordance with the contract from the planned time of arrival at the interchange point. Today, there is no methodology for planning the operation of rolling stock of road transport in international traffic that takes into account modern requirements for the technology of cargo transportation in terms of eliminating waiting time at the point of transfer or reloading of cargo. The purpose of this article is to develop an algorithm for a planning methodology based on the mathematical model of the functioning of rolling stock in international traffic, created for the first time by the authors, taking into account modern requirements for cargo transportation technology.Materials and methods. To achieve the purpose of the study, the scientific foundations of current planning of the work of a motor transport enterprise are applied. The development of a mathematical model for the functioning of rolling stock in international traffic was carried out on the basis of the criterion - minimum transportation costs, taking into account the duration of technological operations, including waiting time at the point of transfer or reloading of cargo. The systematic nature of the study lies in the fact that the properties of cargo transportation are manifested in relation to rolling stock and depend not only on the properties of the cargo, but also on transportation technology, the time of completion of the transport process, which are established in the contract and affect the performance of the rolling stock.Results. The use of planning methodology for the practice of functioning of rolling stock in international traffic, taking into account modern requirements for cargo transportation technology, was carried out using the example of transporting a disassembled hydraulic vulcanization press. Software and mathematics have been developed to calculate costs.Conclusions. A methodology for planning the functioning of rolling stock in international traffic has been developed, taking into account modern requirements for the technology of cargo transportation based on the created mathematical model, using regulatory requirements for the transportation of goods in international traffic and promising theoretical studies. Practical implementation is presented using the example of a DAF XF 480 FT truck tractor with a Kogel S24-1 semi-trailer.

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Feng, Xiao Hui, and Chang Li Wang. "Research on Serial Communication in the Permanent Magnet Linear Synchronous Motor Vertical Transportation System." Advanced Materials Research 905 (April 2014): 476–80. http://dx.doi.org/10.4028/www.scientific.net/amr.905.476.

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The serial communication design based on DSP in the permanent magnet linear synchronous motor vertical transportation system is presented in this paper. The control system structure and fundamental are introduced briefly at first. Then, the realization of serial communication between the TMS320VC5402 and PC by asynchronous serial communications chip TL16C550C is introduced in detail. Finally, the design of system hardware interface circuit and software programs are presented. The features of this system include simple programming , good reliability and real-time capability.

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Akinci, Burcu, Chris Hendrickson, and Itir Karaesmen. "Exploiting Motor Vehicle Information and Communications Technology for Transportation Engineering." Journal of Transportation Engineering 129, no. 5 (September 2003): 469–74. http://dx.doi.org/10.1061/(asce)0733-947x(2003)129:5(469).

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Cao, Ning, Yunfei Chen, Xueyun Gu, and Wei Feng. "Joint Bi-Static Radar and Communications Designs for Intelligent Transportation." IEEE Transactions on Vehicular Technology 69, no. 11 (November 2020): 13060–71. http://dx.doi.org/10.1109/tvt.2020.3020218.

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Journal articles on the topic 'Transportation and communications'

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