Airborne Traffic Flow Data and Traffic Management. Mark Hickman and Pitu Mirchandani
|
|
- Sybil Welch
- 5 years ago
- Views:
Transcription
1 Airborne Traffic Flow Data and Traffic Management Mark Hickman and Pitu Mirchandani University of Arizona, ATLAS Center Greenshields 75 Symposium July 8-10, 2008
2 Outline Basics of airborne traffic data Macroscopic traffic flow characteristics Historical perspectives Current applications Microscopic traffic flow characteristics Historical perspectives Current research activities A look ahead
3 Basics of Airborne Traffic Data Use video and camera images, and in some cases automated methods, to measure traffic variables Develop analysis techniques and measures of flow based on spatial characteristics of traffic patterns Goal: Improve efficiency of transportation system by integrating airborne data with ground-collected data
4 Basics of Airborne Traffic Data Sensor MEDIA Traffic flows Media: Video and camera images Research effort: Use video and camera images, image processing and algorithms to measure traffic variables Major Characteristic: We are no longer restricted to point detection, and we can use a spatial detection paradigm
5 Macroscopic Flow: Historical Perspective A. N. Johnson (1928), Maryland Aerial Survey of Highway Traffic Between Baltimore and Washington, Proceedings of the Highway Research Board. Washington, D.C., Vol. 8, pp Johnson was Dean of Engineering at the University of Maryland and was investigating the traffic impacts of widening of the two-lane highway between Baltimore and Washington
6 Johnson s Aerial Photography Source: Johnson (1928)
7 Historical Perspective: Johnson Source: Johnson (1928)
8 Historical Perspective: Johnson Source: Johnson (1928)
9 Historical Perspective: Greenshields [H]igh altitude haze, shadows of buildings, trees, and the movement of the blimp are difficulties which, it is believed, are overshadowed by the complete and accurate record of all that happens within the area studied (p. 291) It is felt that several hours of such observations will reveal more than days of less complete data. From this standpoint it could well be that aerial photographs will prove comparatively cheap (p. 297). B. D. Greenshields (1947), The Potential Use of Aerial Photographs in Traffic Analysis, Proceedings of the Highway Research Board. Washington, D.C., Vol. 27, pp
10 Historical Perspective: Wagner and May (1963) Traffic density contour maps from helicopter observations
11 Historical Perspective Research to identify macroscopic characteristics: Forbes and Reiss (1952): traffic flow from video Jordan (1963): freeway speed, flow, density Rice (1963): urban traffic congestion due to access, incidents Cyra (1971): freeway volumes and speeds Makigami et al. (1985): freeway speed, density, bottlenecks Angel et al. (2002 onward): travel times, intersection delays Chandnani and Mirchandani (2002): speeds Agrawal and Hickman (2004): queue lengths Coifman et al. (2004, 2006): origin-destination flows, intersection delay, parking lot utilization Etc.
12 Technology UAS s (or UAV s): Coifman et al. (2004, 2006) Source: Coifman et al. (2006)
13 Microscopic Flow Characteristics from Airborne Data Raw Video Vehicle in Image Vehicle Position and Time Data Collection Video Image Processing Trajectory Processing Application Post-processing Registration Vehicle detection Vehicle tracking Scaling Road mask Correspondence Projection Source: Hickman and Mirchandani (2006)
14 Microscopic Flow: Historical Perspective Manual data reduction Treiterer et al. (1966 onward) Smith and Roskin (1985) Automated data reduction University of Arizona / ATLAS and the Ohio State University Technical University of Delft DLR
15 Microscopic Flow: Treiterer Source: Treiterer and Taylor (1966)
16 University of Arizona / ATLAS IMAGE REGISTRATION VEHICLE DETECTION CONNECTED COMPONENT LABELING TRACKING DISPLAY
17 Vehicle Tracking in Imagery Combination of short-term and long-term tracking of connected components ( blobs ) in registered imagery Short term: Components are investigated to detect moving vehicles and screen out false positives Long term: Once identified, a blob should not be lost in the image sequence; a location predictor is also used
18 IMAGE 1 IMAGE 2
19 Registered Video with Tracking Aerial Video I-10 at Elliott in Phoenix, AZ
20 University of Arizona / Ohio State University Current research: Investigating of truck movements at border crossings and at work zones Using ground counts, selected vehicle identification (GPS or license plates), and airborne observations Investigating of travel times, delays, queuing in order to develop strategies for improved operations
21 Mariposa Frame (Arizona 1300 (0 Sonora) sec) Border
22 I-10 Work Zone, Tucson AZ
23 DLR: ANTAR and TrafficFinder Source: Ruhe et al. (2007)
24 Time (Sec) DLR Distance along Roadway (m) Source: Hipp (2006)
25 DLR Congested flow Synchronized flow Impeded free flow Free flow Source: Ruhe et al. (2007)
26 A Look Ahead Airborne imagery has a long history in traffic analysis Spatial paradigm for data collection Allows collection of a wide variety of performance measures Macroscopic flow characteristics are regularly collected this way today Tools for individual vehicle tracking and analysis are available
27 A Look Ahead Mechanisms for data collection and reduction exist Macroscopic flow characteristics Microscopic flow characteristics Applications Congestion studies Real-time traffic management Understanding of traffic flow Calibration of traffic simulation models
Cumulative Count Curve and Queueing Analysis
Introduction Traffic flow theory (TFT) Zhengbing He, Ph.D., http://zhengbing.weebly.com School of traffic and transportation, Beijing Jiaotong University September 27, 2015 Introduction Outline 1 Introduction
More informationTime Space Diagrams for Thirteen Shock Waves
Time Space Diagrams for Thirteen Shock Waves Benjamin Coifman Institute of Transportation Studies 19 McLaughlin Hall University of California Berkeley, CA 9472 zephyr@eecs.berkeley.edu http://www.cs.berkeley.edu/~zephyr
More informationHysteresis in traffic flow revisited: an improved measurement method
Hysteresis in traffic flow revisited: an improved measurement method Jorge A. Laval a, a School of Civil and Environmental Engineering, Georgia Institute of Technology Abstract This paper presents a method
More informationTraffic Flow Theory & Simulation
Traffic Flow Theory & Simulation S.P. Hoogendoorn Lecture 7 Introduction to Phenomena Introduction to phenomena And some possible explanations... 2/5/2011, Prof. Dr. Serge Hoogendoorn, Delft University
More information2.1 Traffic Stream Characteristics. Time Space Diagram and Measurement Procedures Variables of Interest
2.1 Traffic Stream Characteristics Time Space Diagram and Measurement Procedures Variables of Interest Traffic Stream Models 2.1 Traffic Stream Characteristics Time Space Diagram Speed =100km/h = 27.78
More informationTraffic flow theory involves the development of mathematical relationships among
CHAPTER 6 Fundamental Principles of Traffic Flow Traffic flow theory involves the development of mathematical relationships among the primary elements of a traffic stream: flow, density, and speed. These
More informationChapter 5 Traffic Flow Characteristics
Chapter 5 Traffic Flow Characteristics 1 Contents 2 Introduction The Nature of Traffic Flow Approaches to Understanding Traffic Flow Parameters Connected with Traffic Flow Categories of Traffic Flow The
More informationCapacity Drop. Relationship Between Speed in Congestion and the Queue Discharge Rate. Kai Yuan, Victor L. Knoop, and Serge P.
Capacity Drop Relationship Between in Congestion and the Queue Discharge Rate Kai Yuan, Victor L. Knoop, and Serge P. Hoogendoorn It has been empirically observed for years that the queue discharge rate
More informationMeasuring Wave Velocities on Highways during Congestion using Cross Spectral Analysis
Measuring Wave Velocities on Highways during Congestion using Cross Spectral Analysis Yun Wang, Member, IEEE, Diane Foster, and Benjamin Coifman, Member, IEEE Abstract Previous research has shown that
More informationc) What are cumulative curves, and how are they constructed? (1 pt) A count of the number of vehicles over time at one location (1).
Exam 4821 Duration 3 hours. Points are indicated for each question. The exam has 5 questions 54 can be obtained. Note that half of the points is not always suffcient for a 6. Use your time wisely! Remarks:
More informationPerformance Analysis of Delay Estimation Models for Signalized Intersection Networks
Performance Analysis of Delay Estimation Models for Signalized Intersection Networks Hyung Jin Kim 1, Bongsoo Son 2, Soobeom Lee 3 1 Dept. of Urban Planning and Eng. Yonsei Univ,, Seoul, Korea {hyungkim,
More informationTraffic Flow Theory & Simulation
Traffic Flow Theory & Simulation S.P. Hoogendoorn Lecture 4 Shockwave theory Shockwave theory I: Introduction Applications of the Fundamental Diagram February 14, 2010 1 Vermelding onderdeel organisatie
More informationJEP John E. Jack Pflum, P.E. Consulting Engineering 7541 Hosbrook Road, Cincinnati, OH Telephone:
JEP John E. Jack Pflum, P.E. Consulting Engineering 7541 Hosbrook Road, Cincinnati, OH 45243 Email: jackpflum1@gmail.com Telephone: 513.919.7814 MEMORANDUM REPORT Traffic Impact Analysis Proposed Soccer
More informationVariable Speed Approach for Congestion Alleviation on Boshporus Bridge Crossing
Variable Speed Approach for Congestion Alleviation on Boshporus Bridge Crossing A. Akbas a,1, V. Topuz a,1, H.H. Celik b,2 and M. Ergun c,3 a University of Marmara, Vocational High School of Technical
More informationAssessing the uncertainty in micro-simulation model outputs
Assessing the uncertainty in micro-simulation model outputs S. Zhu 1 and L. Ferreira 2 1 School of Civil Engineering, Faculty of Engineering, Architecture and Information Technology, The University of
More informationEncapsulating Urban Traffic Rhythms into Road Networks
Encapsulating Urban Traffic Rhythms into Road Networks Junjie Wang +, Dong Wei +, Kun He, Hang Gong, Pu Wang * School of Traffic and Transportation Engineering, Central South University, Changsha, Hunan,
More informationOVERVIEW OF A SIMULATION STUDY OF THE HIGHWAY 401 FTMS
OVERVIEW OF A SIMULATION STUDY OF THE HIGHWAY 401 FTMS HELLINGA, Bruce 1, BAKER, Mark 1, VAN AERDE, Michel 1, AULTMAN-HALL, Lisa 1, and MASTERS, Philip 2 1 Transportation Systems Research Group Queen's
More informationVHD Daily Totals. Population 14.5% change. VMT Daily Totals Suffolk 24-hour VMT. 49.3% change. 14.4% change VMT
6.9 Suffolk 6-54 VMT Population and Travel Characteristics Population 14.5% change 2014 1,529,202 VHD Daily Totals 2014 251,060 49.3% change 2040 1,788,175 2040 374,850 VMT Daily Totals 2014 39,731,990
More informationDISCRETE EVENT SIMULATION EXPERIMENTS AND GEOGRAPHIC INFORMATION SYSTEMS IN CONGESTION MANAGEMENT PLANNING
Proceedings of the 1998 Winter Simulation Conference D.J. Medeiros, E.F. Watson, J.S. Carson and M.S. Manivannan, eds. DISCRETE EVENT SIMULATION EXPERIMENTS AND GEOGRAPHIC INFORMATION SYSTEMS IN CONGESTION
More informationEstimating Density and Lane Inflow on a Freeway Segment
Estimating Density and Lane Inflow on a Freeway Segment Benjamin Coifman, PhD Assistant Professor, Department of Civil and Environmental Engineering and Geodetic Science Assistant Professor, Department
More informationCity form and its macroscopic fundamental diagram
Research Collection Presentation City form and its macroscopic fundamental diagram Author(s): Axhausen, Kay W. Publication Date: 2018-06 Permanent Link: https://doi.org/10.3929/ethz-b-000267750 Rights
More informationPerth County Road Fatal Head-on Collision - A Common and Dangerous Issue
Perth County Road Fatal Head-on Collision - A Common and Dangerous Issue Posting Date: 25-Aug-2016 Figure 1: View looking east long "Speeders Alley" - a more appropriate name for the long, straight and
More informationCHAPTER 5 DELAY ESTIMATION FOR OVERSATURATED SIGNALIZED APPROACHES
CHAPTER 5 DELAY ESTIMATION FOR OVERSATURATED SIGNALIZED APPROACHES Delay is an important measure of effectiveness in traffic studies, as it presents the direct cost of fuel consumption and indirect cost
More informationEstimation of Measures of Effectiveness Based on Connected Vehicle Data
Estimation of Measures of Effectiveness Based on Connected Vehicle Data Juan Argote, Eleni Christofa, Yiguang Xuan, and Alexander Skabardonis Abstract Vehicle-infrastructure cooperation via the Connected
More informationWEATHER IMPACT. on FLOATING CAR DATA
WEATHER IMPACT on FLOATING CAR DATA Alexander Sohr Research Scientist, DLR Institute of Transportation Systems Rutherfordstr. 2, 12489 Berlin, Germany TEL +49 3 67 55 458, FAX +49 3 67 55 291, alexander.sohr@dlr.de
More informationCVS Derwood. Local Area Transportation Review
CVS Derwood Montgomery County, Maryland May 27, 2016 Local Area Transportation Review Prepared for: JC Bar Properties, Inc. Steve Fleming, PE 415 Fallowfield Road, Suite 301 Camp Hill, Pennsylvania 17011
More informationAPPENDIX IV MODELLING
APPENDIX IV MODELLING Kingston Transportation Master Plan Final Report, July 2004 Appendix IV: Modelling i TABLE OF CONTENTS Page 1.0 INTRODUCTION... 1 2.0 OBJECTIVE... 1 3.0 URBAN TRANSPORTATION MODELLING
More informationReal-time, Adaptive Prediction of Incident Delay for Advanced Traffic Management Systems
Real-time, Adaptive Prediction of Incident Delay for Advanced Traffic Management Systems Liping Fu and Bruce Hellinga Department of Civil Engineering, University of Waterloo, Waterloo, Canada Phone: 59
More informationExistence, stability, and mitigation of gridlock in beltway networks
Existence, stability, and mitigation of gridlock in beltway networks Wen-Long Jin a, a Department of Civil and Environmental Engineering, 4000 Anteater Instruction and Research Bldg, University of California,
More informationImproving forecasting under missing data on sparse spatial networks
Improving forecasting under missing data on sparse spatial networks J. Haworth 1, T. Cheng 1, E. J. Manley 1 1 SpaceTimeLab, Department of Civil, Environmental and Geomatic Engineering, University College
More informationFreeway Detector Assessment- Aggregate Data from the Remote Traffic Microwave Sensor (RTMS)
Freeway Detector Assessment- Aggregate Data from the Remote Traffic Microwave Sensor () Benjamin Coifman, PhD Assistant Professor, Civil and Environmental Engineering and Geodetic Science Assistant Professor,
More informationIndirect Clinical Evidence of Driver Inattention as a Cause of Crashes
University of Iowa Iowa Research Online Driving Assessment Conference 2007 Driving Assessment Conference Jul 10th, 12:00 AM Indirect Clinical Evidence of Driver Inattention as a Cause of Crashes Gary A.
More informationVEHICULAR TRAFFIC FLOW MODELS
BBCR Group meeting Fri. 25 th Nov, 2011 VEHICULAR TRAFFIC FLOW MODELS AN OVERVIEW Khadige Abboud Outline Introduction VANETs Why we need to know traffic flow theories Traffic flow models Microscopic Macroscopic
More informationShock wave analysis. Chapter 8. List of symbols. 8.1 Kinematic waves
Chapter 8 Shock wave analysis Summary of the chapter. Flow-speed-density states change over time and space. When these changes of state occur, a boundary is established that demarks the time-space domain
More information$QDO\]LQJ$UWHULDO6WUHHWVLQ1HDU&DSDFLW\ RU2YHUIORZ&RQGLWLRQV
Paper No. 001636 $QDO\]LQJ$UWHULDO6WUHHWVLQ1HDU&DSDFLW\ RU2YHUIORZ&RQGLWLRQV Duplication for publication or sale is strictly prohibited without prior written permission of the Transportation Research Board
More informationCHAPTER 3. CAPACITY OF SIGNALIZED INTERSECTIONS
CHAPTER 3. CAPACITY OF SIGNALIZED INTERSECTIONS 1. Overview In this chapter we explore the models on which the HCM capacity analysis method for signalized intersections are based. While the method has
More informationWe provide two sections from the book (in preparation) Intelligent and Autonomous Road Vehicles, by Ozguner, Acarman and Redmill.
We provide two sections from the book (in preparation) Intelligent and Autonomous Road Vehicles, by Ozguner, Acarman and Redmill. 2.3.2. Steering control using point mass model: Open loop commands We consider
More information1.225 Transportation Flow Systems Quiz (December 17, 2001; Duration: 3 hours)
1.225 Transportation Flow Systems Quiz (December 17, 2001; Duration: 3 hours) Student Name: Alias: Instructions: 1. This exam is open-book 2. No cooperation is permitted 3. Please write down your name
More informationTravel Time Estimation with Correlation Analysis of Single Loop Detector Data
Travel Time Estimation with Correlation Analysis of Single Loop Detector Data Huairui Guo and Jionghua (Judy) Jin In this paper, the average travel time over a link is considered as a random variable following
More informationModeling and simulation of highway traffic using a cellular automaton approach
U.U.D.M. Project Report 2011:25 Modeling and simulation of highway traffic using a cellular automaton approach Ding Ding Examensarbete i matematik, 30 hp Handledare och examinator: Ingemar Kaj December
More informationSpeed-Flow and Bunching Relationships for Uninterrupted Flows
25th Conference of Australian Institutes of Transport Research (CAITR 2003), University of South Australia, Adelaide, Australia, 3-5 December 2003 First Version: 2 December 03 Speed-Flow and Bunching Relationships
More informationSpontaneous Jam Formation
Highway Traffic Introduction Traffic = macroscopic system of interacting particles (driven or self-driven) Nonequilibrium physics: Driven systems far from equilibrium Collective phenomena physics! Empirical
More informationH. T. Zwahlen, A. Russ, and T. Schnell 1
H. T. Zwahlen, A. Russ, and T. Schnell 1 Paper No. 03-2686 Title: Driver Eye Scanning Behavior While Viewing Ground-Mounted Diagrammatic Guide Signs before Entrance Ramps at Night Helmut T. Zwahlen, Andrew
More informationCAPACITY DROP: A RELATION BETWEEN THE SPEED IN CONGESTION AND THE QUEUE DISCHARGE RATE
CAPACITY DROP: A RELATION BETWEEN THE SPEED IN CONGESTION AND THE QUEUE DISCHARGE RATE Kai Yuan, PhD candidate TRAIL research school Department of Transport and Planning Faculty of Civil Engineering and
More informationPartial elliptical two regime speed flow traffic model based on the highway capacity manual
Partial elliptical two regime speed flow traffic model based on the highway capacity manual Yousif, S Title Authors Type URL Partial elliptical two regime speed flow traffic model based on the highway
More informationXiaoguang Wang, Assistant Professor, Department of Geography, Central Michigan University Chao Liu,
Xiaoguang Wang, Email: wang9x@cmich.edu Assistant Professor, Department of Geography, Central Michigan University Chao Liu, Email: cliu8@umd.edu Research Associate, National Center for Smart Growth, Research
More informationResearch Article Headway Distributions Based on Empirical Erlang and Pearson Type III Time Methods Compared
Research Journal of Applied Sciences, Engineering and Technology 7(21): 4410-4414, 2014 DOI:10.19026/rjaset.7.817 ISSN: 2040-7459; e-issn: 2040-7467 2014 Maxwell Scientific Publication Corp. Submitted:
More informationReal Time Traffic Control to Optimize Waiting Time of Vehicles at A Road Intersection
International Journal of Research in Engineering and Science (IJRES) ISSN (Online): 2320-9364, ISSN (Print): 2320-9356 w Volume 6 Issue 4 Ver. II ǁ 2018 ǁ PP. 25-33 Real Time Traffic Control to Optimize
More informationChapter 2 Travel Time Definitions
Chapter 2 Travel Time Definitions Abstract In this Chapter, travel time definitions are analytically presented. Also, a trajectory reconstruction algorithm necessary in order to navigate between different
More informationAnalytical Delay Models for Signalized Intersections
Analytical Delay Models for Signalized Intersections Ali Payidar Akgungor and A. Graham R. Bullen INTRODUCTION Delay is the most important measure of effectiveness (MOE) at a signalized intersection because
More informationSignalized Intersection Delay Models
Chapter 35 Signalized Intersection Delay Models 35.1 Introduction Signalized intersections are the important points or nodes within a system of highways and streets. To describe some measure of effectiveness
More informationNATHAN HALE HIGH SCHOOL PARKING AND TRAFFIC ANALYSIS. Table of Contents
Parking and Traffic Analysis Seattle, WA Prepared for: URS Corporation 1501 4th Avenue, Suite 1400 Seattle, WA 98101-1616 Prepared by: Mirai Transportation Planning & Engineering 11410 NE 122nd Way, Suite
More informationTRB Traffic Flow on Freeway Upgrades. By Werner Brilon and Andrea Bressler
TRB 4-2953 Traffic Flow on Freeway Upgrades By Werner Brilon and Andrea Bressler Ruhr University Bochum D-447 Bochum, Germany Phone: + 49 234 322 5936 ; Fax: +49 234 32 14 151 Email: verkehrswesen@rub.de
More informationDevelopment and Evaluation of Online Estimation Methods for a Feedback-Based Freeway Ramp Metering Strategy
Development and Evaluation of Online Estimation Methods for a Feedback-Based Freeway Ramp Metering Strategy Kaan Ozbay, Ph.D. Associate Professor Rutgers University, Civil and Environmental Engineering,
More informationEmpirical Study of Traffic Velocity Distribution and its Effect on VANETs Connectivity
Empirical Study of Traffic Velocity Distribution and its Effect on VANETs Connectivity Sherif M. Abuelenin Department of Electrical Engineering Faculty of Engineering, Port-Said University Port-Fouad,
More informationEstimation of Speeds from Single-Loop Freeway Flow and Occupancy Data Using Cusp Catastrophe Theory Model
TRANSPORTATION RESEARCH RECORD 1457 149 Estimation of Speeds from Single-Loop Freeway Flow and Occupancy Data Using Cusp Catastrophe Theory Model ANNA PUSHKAR, FRED L. HALL, AND JORGE A. ACHA-DAZA Many
More information2D Traffic Flow Modeling via Kinetic Models
Modeling via Kinetic Models Benjamin Seibold (Temple University) September 22 nd, 2017 Benjamin Seibold (Temple University) 2D Traffic Modeling via Kinetic Models 09/22/2017, ERC Scale-FreeBack 1 / 18
More informationUsing Aurora Road Network Modeler for Active Traffic Management
2010 American Control Conference Marriott Waterfront, Baltimore, MD, USA June 30-July 02, 2010 WeC20.2 Using Aurora Road Network Modeler for Active Traffic Management Alex A. Kurzhanskiy and Pravin Varaiya
More informationDelay of Incidents Consequences of Stochastic Incident Duration
Delay of Incidents Consequences of Stochastic Incident Duration Victor L. Knoop 1, Serge P. Hoogendoorn 1, and Henk J. van Zuylen 1 Delft University of Technology & TRIL research School, Stevinweg 1, 68
More informationAutomated Delay Estimation at Signalized Intersections: Phase I Concept and Algorithm Development
Brigham Young University BYU ScholarsArchive All Theses and Dissertations 2011-03-16 Automated Delay Estimation at Signalized Intersections: Phase I Concept and Algorithm Development Taylor R. Forbush
More informationFocused Traffic Analysis for the One Lincoln Park Project
September 15, 2015 Mr. Bill Johnson Coldwell Banker 511 Sir Francis Drake Boulevard Greenbrae, CA 94904 Focused Traffic Analysis for the One Lincoln Park Project Dear Mr. Johnson; As requested, W-Trans
More informationCEE 320 Midterm Examination (50 minutes)
CEE 320 Midterm Examination (50 minutes) Fall 2009 Please write your name on this cover. Please write your last name on all other exam pages This exam is NOT open book, but you are allowed to use one 8.5x11
More informationAppendix BAL Baltimore, Maryland 2003 Annual Report on Freeway Mobility and Reliability
(http://mobility.tamu.edu/mmp) Office of Operations, Federal Highway Administration Appendix BAL Baltimore, Maryland 2003 Annual Report on Freeway Mobility and Reliability This report is a supplement to:
More informationReal-Time Traffic Information Production and Presentation Using GIS-Based Maps
Real-Time Traffic Information Production and Presentation Using GIS-Based Maps Abstract Dan Nual, Ph.D. Michael Wlodyka Napol Phiu-Nual Principal, Traftools Chief Computer Architect Director, Traftools
More informationNorth Carolina s First Quadrant Left: History and Lessons Learned
0 0 0 North Carolina s First Quadrant Left: History and Lessons Learned Michael P. Reese, P.E. (Corresponding Author) Congestion Management Section Project Engineer North Carolina Department of Transportation
More informationA Continuous Model for Two-Lane Traffic Flow
A Continuous Model for Two-Lane Traffic Flow Richard Yi, Harker School Prof. Gabriele La Nave, University of Illinois, Urbana-Champaign PRIMES Conference May 16, 2015 Two Ways of Approaching Traffic Flow
More informationImproved Velocity Estimation Using Single Loop Detectors
Improved Velocity Estimation Using Single Loop Detectors Benjamin Coifman, PhD Assistant Professor, Civil and Environmental Engineering and Geodetic Science Assistant Professor, Electrical Engineering
More informationPATREC PERSPECTIVES Sensing Technology Innovations for Tracking Congestion
PATREC PERSPECTIVES Sensing Technology Innovations for Tracking Congestion Drivers have increasingly been using inexpensive mapping applications imbedded into mobile devices (like Google Maps, MapFactor,
More informationModule 3 Educator s Guide Overview
Module 3 Educator s Guide Overview Human footprints on Earth as seen by NASA scientists Module Overview This module draws upon NASA images and research to introduce students to the various ways humans
More informationCourse Outline Introduction to Transportation Highway Users and their Performance Geometric Design Pavement Design
Course Outline Introduction to Transportation Highway Users and their Performance Geometric Design Pavement Design Speed Studies - Project Traffic Queuing Intersections Level of Service in Highways and
More informationEmpirical Analysis of Traffic Sensor Data Surrounding a Bottleneck on a German Autobahn
Empirical Analysis of Traffic Sensor Data Surrounding a Bottleneck on a German Autobahn Robert L. Bertini, Steven Hansen, and Klaus Bogenberger The evolution of traffic from freely flowing to queued conditions
More informationConception of effective number of lanes as basis of traffic optimization
Available online at www.sciencedirect.com ScienceDirect Procedia Computer Science 91 (016 ) 94 100 Information Technology and Quantitative Management (ITQM 016) Conception of effective number of lanes
More informationValidating Predicted Rural Corridor Travel Times from an Automated License Plate Recognition System: Oregon s Frontier Project
Validating Predicted Rural Corridor Travel Times from an Automated License Plate Recognition System: Oregon s Frontier Project Robert L. Bertini, Matthew Lasky, and Christopher M. Monsere Abstract This
More informationCHAPTER 2. CAPACITY OF TWO-WAY STOP-CONTROLLED INTERSECTIONS
CHAPTER 2. CAPACITY OF TWO-WAY STOP-CONTROLLED INTERSECTIONS 1. Overview In this chapter we will explore the models on which the HCM capacity analysis method for two-way stop-controlled (TWSC) intersections
More informationTraffic Flow Theory & Simulation
Traffic Flow Theory & Simulation S.P. Hoogendoorn Lecture 1 Introduction Photo by Wikipedia / CC BY SA Course 4821 - Introduction 1 57 Photo by wikipedia / CC BY SA Traffic Flow Theory & Simulation An
More informationKaren R. Smilowitz, Carlos F. Daganzo, Michael J. Cassidy and Robert L. Bertini
1 Some Observations Of Highway Traffic In Long Queues Karen R. Smilowitz, Carlos F. Daganzo, Michael J. Cassidy and Robert L. Bertini 416 McLaughlin Hall Department of Civil and Environmental Engineering,
More informationGIS-BASED VISUALIZATION FOR ESTIMATING LEVEL OF SERVICE Gozde BAKIOGLU 1 and Asli DOGRU 2
Presented at the FIG Congress 2018, May 6-11, 2018 in Istanbul, Turkey GIS-BASED VISUALIZATION FOR ESTIMATING LEVEL OF SERVICE Gozde BAKIOGLU 1 and Asli DOGRU 2 1 Department of Transportation Engineering,
More informationProject Level Traffic Forecasting Summary of Practices from other States. TNMUG March 6, 2008
Project Level Traffic Forecasting Summary of Practices from other States TNMUG March 6, 2008 TMIP Listserve Query by Jerry Everett Found that at least 4 State DOTs have instituted formal traffic forecasting
More informationSaskatchewan s Early Trade Routes: The Impact of Geography on Trade
Saskatchewan s Early Trade Routes: The Impact of Geography on Trade Lesson Overview In this lesson, students will compare and contrast prehistoric First Nations trade routes and trade goods with the routes
More informationSome Observations of Highway Traffic in Long Queues
TRANSPORTATION RESEARCH RECORD 1678 Paper No. 99-0094 225 Some Observations of Highway Traffic in Long Queues KAREN R. SMILOWITZ, CARLOS F. DAGANZO, MICHAEL J. CASSIDY, AND ROBERT L. BERTINI The arrival
More informationAccident Prediction Models for Freeways
TRANSPORTATION RESEARCH RECORD 1401 55 Accident Prediction Models for Freeways BHAGWANT PERSAUD AND LESZEK DZBIK The modeling of freeway accidents continues to be of interest because of the frequency and
More informationSTRC 1st. Comparison of capacity between roundabout design and signalised junction design. Jian-an TAN, Citec ingénieurs conseils SA
Comparison of capacity between roundabout design and signalised junction design Jian-an TAN, Citec ingénieurs conseils SA Conference paper STRC 2001 Session Engineering STRC 1st Swiss Transport Research
More informationYu (Marco) Nie. Appointment Northwestern University Assistant Professor, Department of Civil and Environmental Engineering, Fall present.
Yu (Marco) Nie A328 Technological Institute Civil and Environmental Engineering 2145 Sheridan Road, Evanston, IL 60202-3129 Phone: (847) 467-0502 Fax: (847) 491-4011 Email: y-nie@northwestern.edu Appointment
More informationThe German Autobahn: An ITS Test Bed for Examining Dynamic Traffic Flow Phenomena
The German Autobahn: An ITS Test Bed for Examining Dynamic Traffic Flow Phenomena Robert L. Bertini, Roger V. Lindgren, Dirk Helbing and, Martin Schönhof Abstract Traffic conditions were examined along
More informationSpeed-flow Models for Freeways
Available online at www.sciencedirect.com Procedia Social and Behavioral Sciences 16 (211) 26 36 6 th International Symposium on Highway Capacity and Quality of Service Stockholm, Sweden June 28 July 1,
More informationTransportation and Road Weather
Portland State University PDXScholar TREC Friday Seminar Series Transportation Research and Education Center (TREC) 4-18-2014 Transportation and Road Weather Rhonda Young University of Wyoming Let us know
More informationEMPIRICAL OBSERVATIONS OF DYNAMIC TRAFFIC FLOW PHENOMENA ON A GERMAN AUTOBAHN
Empirical Observations of Dynamic Traffic Flow Phenomena on a German Autobahn 1 INSERT CHAPTER NUMBER EMPIRICAL OBSERVATIONS OF DYNAMIC TRAFFIC FLOW PHENOMENA ON A GERMAN AUTOBAHN Robert L. Bertini, Department
More informationProject Objectives/Outcomes
Using TRANSIMS for On-line Transportation System Management during Emergencies Peer Exchange Meeting March 15, 2012 Project Objectives/Outcomes Further development of the Buffalo TRANSIMS model Modifying
More informationExamining travel time variability using AVI data
CAITR 2004 Examining travel time variability using AVI data by Ruimin li ruimin.li@eng.monash.edu.au 8-10 December 2004 INSTITUTE OF TRANSPORT STUDIES The Australian Key Centre in Transport Management
More informationDust Storms in Arizona: The Challenge to Ensure Motorist Safety Jennifer Toth, P.E. Deputy Director for Transportation
Dust Storms in Arizona: The Challenge to Ensure Motorist Safety Jennifer Toth, P.E. Deputy Director for Transportation Arizona Department of Transportation AASHTO Extreme Weather Event Symposium May 21,
More informationWeather Responsive. in Maryland. Richard R. Dye Maryland State Highway Administration. Maryland State Highway Administration
Weather Responsive Traffic Management in Maryland Richard R. Dye Maryland State Highway Administration i ti 1st Stakeholder Workshop on Weather Responsive Traffic Mgt October 6-7, 2011 1 RWIS Grew From
More informationCONTINUING PLANNING PROGRAM LOCAL TRANSPORTATION AND TRAFFIC DATA PRODUCT REPORT [OH Corridors]
CONTINUING PLANNING PROGRAM LOCAL TRANSPORTATION AND TRAFFIC DATA PRODUCT REPORT [OH Corridors] Travel Time and Delay Analysis for Belpre (OH) and Marietta (OH) Fiscal Year 2009 Report WOOD WASHINGTON
More informationEmergence of traffic jams in high-density environments
Emergence of traffic jams in high-density environments Bill Rose 12/19/2012 Physics 569: Emergent States of Matter Phantom traffic jams, those that have no apparent cause, can arise as an emergent phenomenon
More informationWinter Maintenance on Ontario s Highways
Ministry of Transportation Winter Maintenance on Ontario s Highways MTO Eastern Region November 18, 2015, Northumberland County Council Outline 1. Winter Maintenance Areas - Eastern Region 2. Winter Maintenance
More informationDetermining the minimum percentage of vehicles equipped with a ucan necessary to accurately estimate the traffic speed
Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science Delft Institute of Applied Mathematics Determining the minimum percentage of vehicles equipped with a
More informationFlow and Capacity Characteristics on Two-Lane Rural Highways
128 TRANSPORTATON RESEARCH RECORD 1320 Flow and Capacity Characteristics on Two-Lane Rural Highways ABSHA PoLus, JosEPH CRAus, AND MosHE LrvNEH Traffic operation on two-lane rural highways is unique; no
More informationUrban Link Travel Time Estimation Using Large-scale Taxi Data with Partial Information
Urban Link Travel Time Estimation Using Large-scale Taxi Data with Partial Information * Satish V. Ukkusuri * * Civil Engineering, Purdue University 24/04/2014 Outline Introduction Study Region Link Travel
More informationAn Analytical Model for Traffic Delays and the Dynamic User Equilibrium Problem
OPERATIONS RESEARCH Vol. 54, No. 6, November December 26, pp. 1151 1171 issn 3-364X eissn 1526-5463 6 546 1151 informs doi 1.1287/opre.16.37 26 INFORMS An Analytical Model for Traffic Delays and the Dynamic
More informationThe Physics of Traffic Jams: Emergent Properties of Vehicular Congestion
December 10 2008 David Zeb Rocklin The Physics of Traffic Jams: Emergent Properties of Vehicular Congestion The application of methodology from statistical physics to the flow of vehicles on public roadways
More informationPrioritization of Freeway Segments Based on Travel Time Reliability and Congestion Severity
Prioritization of Freeway Segments Based on Travel Time Reliability and Congestion Severity A THESIS SUBMITTED TO THE FACULTY OF UNIVERSITY OF MINNESOTA BY Rudrakshi Biswas IN PARTIAL FULFILLMENT OF THE
More information