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Dissertations / Theses on the topic 'Traffic flow Traffic engineering'

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1

Cappiello, Alessandra 1972. "Modeling traffic flow emissions." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84328.

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2

Wall, Zach R. "Traffic management and control utilizing a microscopic model of traffic dynamics /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5922.

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3

Gebresilassie, Mesele Atsbeha. "Spatio-temporal Traffic Flow Prediction." Thesis, KTH, Geoinformatik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-212323.

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The advancement in computational intelligence and computational power and the explosionof traffic data continues to drive the development and use of Intelligent TransportSystem and smart mobility applications. As one of the fundamental components of IntelligentTransport Systems, traffic flow prediction research has been advancing from theclassical statistical and time-series based techniques to data–driven methods mainly employingdata mining and machine learning algorithms. However, significant number oftraffic flow prediction studies have overlooked the impact of road network topology ontraff
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4

Selman, Wassim A. "An investigation of the impact of additional traffic volumes on existing arterials." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/19055.

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5

Benekohal, Rahim Farahnak. "Development and validation of a car following model for simulation of traffic flow and traffic wave studies at bottlenecks /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu148726669109498.

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6

Alothaim, Abdulelah. "Improved Traffic Flow in Riyadh City by 2023." Digital Commons at Loyola Marymount University and Loyola Law School, 2013. https://digitalcommons.lmu.edu/etd/360.

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Cities around the globe try to alleviate congested traffic, especially in economically fast growing cities. In order to help maintain this economic growth, cities must make alleviating congested traffic a priority. The purpose of this paper is to study the traffic problem in Riyadh city in Saudi Arabia and propose a solution. This paper will begin with a brief background about the city and then explain the problem. Afterward, the requirements of the new system will be discussed. Next, using analysis of alternatives, different solutions will be explored and through trade study, some of those al
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7

Yu, Tungsheng. "Traffic flow modeling in highway networks." Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020154/.

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8

Misra, Rajul. "Toward a comprehensive representation and analysis framework for non-worker activity-travel pattern modeling /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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9

Sheu, Hsin-Teng. "A coordinated decentralized flow and routing control algorithm for an automated highway system /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu148758564557836.

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10

Nevers, Brandon L. "A Model of Saturation Flow Using Traffic Subgroups." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010205-180834.

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<p>This thesis presents a methodology for estimating saturation flow rates at signalized intersections by traffic subgroups. A subgroup is defined as a group of vehicles of a specific vehicle classification that make a single directional movement from one lane. The subgroup method is founded on the procedures described in the 1997 Highway Capacity Manual (HCM) (Transportation Research Board, 1997) but extends beyond the HCM's lane group model to provide results that can be aggregated at multiple levels. Rather than assuming homogeneous conditions within each lane or lane group as is the case w
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11

Gopalan, Ganesh. "Improvement of traffic flow conditions using access management techniques : a netsim study /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426063.

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12

Zhao, Ning. "Railway traffic flow optimisation with differing control systems." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4725/.

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This thesis describes the development of a multi-train simulator in which different train control systems are simulated on a common section of high-speed line operating with four trains. The simulator is used to estimate and compare train knock-on delay performance with different signalling systems. This thesis further demonstrates a train trajectory optimisation work. Four searching approach have been implemented to find, for a specific train, the most appropriate target speed in different areas in order to minimise energy usage and delays. A West Coast Main Line case study is presented in or
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13

Low, David Wayne. "Application of transyt-7F on a downtown bus loop." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/22343.

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14

Marron, Joshua B. (Joshua Benjamin) 1981. "The stochastic air traffic flow management rerouting problem." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28452.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (leaves 42-43).<br>We formulate a model for planning the rerouting of aircraft to alleviate en-route congestion, with system capacity being modeled stochastically. To overcome problems with tractability, we apply a Dantzig-Wolfe decomposition and present an efficient method for solving it. The decomposed formulation is shown to be tractable for real-world problem, and it generates up to a ten percent reduction in cost when compared to an ot
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15

Walker, T. Owens. "Traffic-adaptive, flow-specific medium access for wireless networks." Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/dissert/2009/Sep/09Sep_Walker_PhD.pdf.

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Dissertation (Ph.D. in Electrical Engineering)--Naval Postgraduate School, September 2009.<br>Dissertation Advisor(s): Tummala, Murali ; McEachen, John. "September 2009." Description based on title screen as viewed on November 5, 2009. Author(s) subject terms: Flow-specific; Traffic-adaptive; Cross layer; Medium access control; Wireless; Energy-efficiency; Preamble sampling; Networked satellite systems. Includes bibliographical references (p. 119-213). Also available in print.
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16

Fong, Pui San. "Assessment of roundabout in urban road network :a case study of Macau." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691706.

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17

Karhunen, A. (Antti). "Traffic Flow Garner -rajapinnan hyödyntäminen liikennevalojärjestelmän liikenneteknisessä seurannassa ja kehittämisessä." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201604061380.

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Liikennevalot ovat keskeinen osa liikenneverkon toiminnallisuutta. Tällä hetkellä liikennevalojen liikenneteknisen toiminnan seurantaan ei ole olemassa erityisen hyviä laajoja alueita käsittäviä ja pitkäaikaiseen seurantaan soveltuvia työkaluja tai automatisoituja toimintoja. Liikennevalotietoja välittävä Dynniq:n kehittämä Traffic Flow Garner (TFG) -rajapinta antaa aivan uuden mahdollisuuden liikennevaloliittymien seurantaan. Sen välittämä yksityiskohtainen reaaliaikatieto sisältää opastinryhmien ja ilmaisimien tilatiedot sekä konfiguraatiotiedot, joista voidaan laskea useita sekä liikenneval
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18

Ho, Wai Io. "Flow based traffic measurement for TCP/IP network." Thesis, University of Macau, 2001. http://umaclib3.umac.mo/record=b1636974.

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19

Areström, Erik. "Flow Classification of Encrypted Traffic Streams using Multi-fractal Features." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148725.

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The increased usage of encrypted application layer traffic is making it harder for traditional traffic categorization methods like deep packet inspection to function. Without ways of categorizing traffic, network service providers have a hard time optimizing traffic flows, resulting in worse quality of experience for the end user. Recent solutions to this problem typically apply some statistical measurements on network flows and use the resulting values as features in a machine learning model. However, by utilizing recent advances in multi-fractal analysis, multi-fractal features can be extrac
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20

Wu, Di. "Campus emergency evacuation traffic management plan." Master's thesis, Mississippi State : Mississippi State University, 2009. http://library.msstate.edu/etd/show.asp?etd=etd-03302009-105508.

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21

Grier, Nathaniel J. (Nathaniel Jedidiah) 1978. "Improved methods for solving traffic flow problems in dynamic networks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84805.

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22

Zhu, Yi. "Mixed traffic in Chinese cities : bicycle and the intersection problems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0019/MQ54315.pdf.

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23

Ni, Ming. "Using Social Media to Predict Traffic Flow under Special Event Conditions." Thesis, State University of New York at Buffalo, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1546950.

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<p> Social media is great resource of user-generated contents. Public attention, opinion and hot topics can be captured in the social media, which provides the ability to predict human related events. Since social media can be retrieved in real time with no building cost and no maintenance cost, traffic operation authorizes probably identify the social media data as another type sensor for traffic demand. In this thesis, we aim to use social media information to assist traffic flow prediction under special event conditions. Specially, a short-term traffic flow prediction model, incorporated w
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24

Schoepflin, Todd Nelson. "Algorithms for estimating mean vehicle speed using uncalibrated traffic management cameras /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/6034.

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25

Turley, Carole. "Calibration Procedure for a Microscopic Traffic Simulation Model." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1747.pdf.

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26

Riley, Kevin D. "Impacts on vehicular traffic flow due to changes in pedestrian walking speed." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1571867.

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<p> In January 2012, California adopted federal law requiring city's traffic engineers to decrease the pedestrian walking speeds at signalized intersections from 4fps to 3.5fps. Ten signalized intersections along Atlantic Avenue between Spring Street to Carson Street were selected to evaluate impacts due to pedestrian walking speed changes. One hour peak evening volumes were collected and entered into Synchro by Trafficware to compare intersections and approach delays on 75 and 100 seconds cycle lengths with combination of coordinated and uncoordinated systems. Volume growth rate effects, s
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27

Roux, Jacques. "Establishing and applying speed-flow relationships for traffic on South African freeways." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52261.

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Thesis (MEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: Peak mornmg traffic-flow data were obtained from video footage of three representative freeway sections on the Nl and N2 westbound towards Cape Town. Flow, speed, and density measurements were made from the footage with the aid of a stopwatch. Many researchers (2-12) have originated and developed models to describe the relationships between traffic flow characteristics (speed, flow, and density) on freeways. In this report, a number of these models have been investigated with data obtained from South African freeways
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28

Washburn, Scott Stuart. "New technologies for data collection and their application for empirical investigation of travel time measurement issues /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/10139.

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29

Alarcón, Reyes Rodrigo. "Average downlink traffic rate estimation in IP networks using flow-based measurements." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114543.

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Having a complete knowledge about average traffic rates on different links in a network is highly desirable for network operators, particularly when performing tasks such as capacity planning and traffic engineering, or when making decisions on network redesigning.In this thesis, we propose a technique for estimating the average downlink traffic rate on internal links from a single measurement point. Our main contribution is a solution that does not assume a specific statistical model for the traffic, relying only on a constant ratio between the uplink and the downlink traffic on each link, an
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30

Ntinda, Henock Mankavu. "Operational upgrades to improve traffic flow in Small Middleweight Cities: Windhoek, Namibia." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/16964.

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The study of the improvements to transport controlling facilities, defined in this dissertation as operational transport upgrades, aims to ascertain its influence on a growing urban traffic demand. This dissertation assesses the influence that the conversion of Werner List Street into a one-way street has on the performance of traffic accommodation. Werner List Street links traffic commuting from the south to the north of Windhoek's Central Business District (CBD). The CBD traffic demand is estimated to breach network capacity by 2015, a scenario prevalent in many small middleweight cities. Th
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31

Smith, Katie S. "A profile of HOV lane vehicle characteristics on I-85 prior to HOV-to-HOT conversion." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42923.

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The conversion of high-occupancy vehicle (HOV) lanes to high-occupancy toll (HOT) lanes is currently being implemented in metro Atlanta on a demonstration basis and is under consideration for more widespread adoption throughout the metro region. Further conversion of HOV lanes to HOT lanes is a major policy decision that depends on knowledge of the likely impacts, including the equity of the new HOT lane. Rather than estimating these impacts using modeling or surveys, this study collects revealed preference data in the form of observed vehicle license plate data and vehicle occupancy data fr
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32

Dunn, Daniel D. "Attacker-Induced Traffic Flow Instability in a Stream of Automated Vehicles." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4455.

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Highway systems world wide continue to see an ever increased number of vehicles and subsequently a rise in congested traffic. This results in longer commute times, wasted energy as vehicles idle in stop and go traffic, and increases the risk of accidents. In short, increased congestion costs time and money. These issues have prompted much research into Automated Highway Systems (AHS). In AHS vehicles using computer algorithms can safely travel at much smaller inter-vehicle distances than human drivers are capable of. This increases the capacity of existing highway systems. Sensors aboard each
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33

Wu, Seung Kook. "Adaptive traffic control effect on arterial travel time charateristics." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31839.

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Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Hunter, Michael; Committee Member: Guensler, Randall; Committee Member: Leonard, John; Committee Member: Rodgers, Michael; Committee Member: Roshan J. Vengazhiyil. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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34

SARAF, ADITYA P. "EFFICIENT ALGORITHMS FOR OPTIMAL ARRIVAL SCHEDULING AND AIR TRAFFIC FLOW MANAGEMENT." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1190986679.

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35

Davis, Kathryn. "Simulating traffic flow for emergency evacuation in Manhattan, KS using Rockwell ARENA." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4145.

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36

Wang, Ziyuan. "Proactive traffic control stategies for sensor-enabled cars /." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/7103.

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37

Mennicke, Martin. "Simulation and interpretation for a voice-activated traffic information system." Honors in the Major Thesis, University of Central Florida, 2003. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/328.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Engineering<br>Computer Engineering
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38

Feng, Yiheng. "Intelligent Traffic Control in a Connected Vehicle Environment." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/578411.

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Signal control systems have experienced tremendous development both in hardware and in control strategies in the past 50 years since the advent of the first electronic traffic signal control device. The state-of-art real-time signal control strategies rely heavily on infrastructure-based sensors, including in-pavement or video based loop detectors for data collection. With the emergence of connected vehicle technology, mobility applications utilizing vehicle to infrastructure (V2I) communications enable the intersection to acquire a much more complete picture of the nearby vehicle states. Base
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39

Desiraju, Divya. "Minimizing the Disruption of Traffic Flow of Automated Vehicles During Lane Changes." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2010.

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In intelligent transportation systems, most of the research work has focused on lane change assistant systems. No existing work considers minimizing the interruption of traffic flow by maximizing the number of lane changes while eliminating the collisions. In this thesis, we develop qualitative and quantitative approaches for minimizing the interruption of traffic flow for three lane scenarios and show that we can extend our approach to any random number of lanes. The algorithm we propose in this thesis is able to achieve the maximum number of lane changes provided that only one vehicle per gr
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40

Pham, Cao Van. "Signalized fuzzy logic for diamond interchanges incorporating with fuzzy ramp system : a thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Mechatronics at Massey University, Auckland, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/1126.

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New dynamic signal control methods such as fuzzy logic and artificial intelligence developed recently mainly focused on isolated intersection. In this study, a Fuzzy Logic Control for a Diamond Interchange incorporating with Fuzzy Ramp System (FLDI) has been developed. The signalization of two closely spaced intersections in a diamond interchange is a complicated problem that includes both increasing the diamond interchange capacity and reduce delays at the same time. The model comprises of three main modules. The Fuzzy Phase Timing module controls the current phase green time extension, the P
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41

Nassir, Neema. "Optimal Integrated Dynamic Traffic Assignment and Signal Control for Evacuation of Large Traffic Networks with Varying Threat Levels." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/297042.

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This research contributes to the state of the art and state of the practice in solving a very important and computationally challenging problem in the areas of urban transportation systems, operations research, disaster management, and public policy. Being a very active topic of research during the past few decades, the problem of developing an efficient and practical strategy for evacuation of real-sized urban traffic networks in case of disasters from different causes, quickly enough to be employed in immediate disaster management scenarios, has been identified as one of the most challenging
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42

Molla, Mohammad Mofigul Islam. "A Stochastic Bayesian Update and Logistic Growth Mapping of Travel-Time Flow Relationship." Diss., North Dakota State University, 2017. http://hdl.handle.net/10365/25911.

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The travel-time flow relationship is not always increasing in nature, it is very difficult to predict precisely. Traditional method fails to replicate this unique conditions. Until millennium, although various researchers and practitioners have given much attention to develop travel-time flow relationships, the advancement to improve travel-time flow relationships was not substantial. The knowledge about the travel-time flow relationship is not commensurate with or parallel to the advancement of new knowledge in other fields. After millennium, most investigators did not devote enough attention
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43

Ahmed, Istiak. "Using the Macroscopic Fundamental Diagram to Characterize the Traffic Flow in Urban Network." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/78468.

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Various theories have been proposed to describe vehicular traffic flow in cities on an aggregate level. This dissertation work shows that a number of MFDs exist in an urban network. The number of MFDs basically indicate the existence of different levels of service on different network routes. It also demonstrate that the modification of control strategy can optimize the signal timing plan for the links with high congestion and spillbacks. With the proposed control strategy, the location of points are shifted from lower MFDs to upper MFDs which means the congestion are reduced and the overall n
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44

Ren, Hui. "Exam of the Relationship of Traffic Flow, Density and Speed with RADAR Data." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535382803620171.

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45

Osra, Khalid A. "Traffic characteristics on the Jeddah-Makkah freeway, Saudi Arabia." Ohio : Ohio University, 2002. http://www.ohiolink.edu/etd/view.cgi?ohiou1174931451.

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46

Kothuri, Sirisha Murthy. "Exploring Pedestrian Responsive Traffic Signal Timing Strategies in Urban Areas." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1934.

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The role of walking in the development of healthy, livable communities is being increasingly recognized. In urban areas, intersections represent locations where different modes converge, and are often viewed as deterrents to walking. This is due to the unwarranted and often unnecessary delays imposed by signal timing policies for pedestrians and increased potential for conflicts. Traditional signal timing design prioritizes vehicles over pedestrians leading to undesirable consequences such as large delays and risky pedestrian behaviors. Pedestrians are accommodated in a manner that is designed
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47

He, Yiy. "A flow-based approach to the dynamic traffic assignment problem : formulations, algorithms, and computer implementatins." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10362.

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48

Hermant, Laurent Fernand Leon. "Morning peak period travel characteristics of a residential suburb in Cape Town during a school and holiday period : what lessons can we learn?" Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/20443.

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Thesis (MScEng)--University of Stellenbosch, 2008.<br>ENGLISH ABSTRACT: It is argued that an understanding of variability is central to the modelling of travel behaviour and the assessment of policy impacts and is not the peripheral issue that it has often been considered. There is a growing need to assess multi-day data to assess the distribution of user charges for road pricing, or patterns of public transport usage as well as improve the ability to identify mechanisms behind travel behaviour for modelling purposes. Drawing on studies worldwide, in conjunction with a review of the liter
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49

Brandriss, Josef Joshua 1977. "Estimation of origin-destination flows for dynamic traffic assignment." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8950.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 107-112).<br>This thesis proposes a framework and method for dynamic origin-destination demand estimation. OD estimation is a critical component of a Dynamic Traffic Assignment system in that it determines the frequencies of drivers' trips through a network. The OD estimation method presented here allows for tunable optimization to three classes of objectives: Assigned traffic flows, deviation from historical data, and relative proportions
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50

Tamayo, Cascan Edgar. "Towards using microscopic traffic simulations for safety evaluation." Thesis, KTH, Fordonsdynamik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-243486.

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Microscopic traffic simulation has become an important tool to investigate traffic efficiency and road safety. In order to produce meaningful results, incorporated driver behaviour models need to be carefully calibrated to represent real world conditions. In addition to macroscopic relationships such as the speed-density diagram, they should also adequately represent the average risk of accidents occurring on the road. In this thesis, I present a two stage computationally feasible multi-objective calibration process. The first stage performs a parameter sensitivity analysis to select only para
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