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CTS Events
SEMINAR
December 1, 2009 Dr. Ramasamy Uthurusamy, former General Director of Emerging Technologies, Information Systems and Services Division of General Motors Corporation, will present a seminar entitled "Role of Strategy in Computational Transportation Science",
SEMINAR
November 24, 2009 CTS welcomes Mr. Kevin Moran, NAVTEQ, who will present a seminar entitled "Digital Roadmaps, Driver Safety and Vehicle Efficiency - Smart Roads, Aware Drivers and Intelligent Vehicles - Closing the Loop with Digital Map-Enhanced Advanced Driver Assistance
SEMINAR
November 17, 2009 Josh Auld, CTS Fellow, will present a seminar entitled "Activity Planning Processes in the ADAPTS Activity-Based Modeling Framework", Tuesday, November 17th
CTS Happenings
November 3, 2009
Second International Workshop on
Computational Transportation Science
July 2, 2009
CTS IGERT Fellow Stephen Vaughn won a Research Grant for the 4th International Conference on Women's Issues in Transportation (2009)
May 18, 2009
CTS IGERT Fellow Josh Auld presented "Evaluating Transportation Impacts of Forecast Demographic Scenarios Using Population Synthesis and Data Transferability" at the 12th TRB National Transportation Planning Applications Conference Houston, TX in May
April 22, 2009
CTS-IGERT Trainee Chad A. William's collaborative work accepted for publication! "Attribute Constrained Rules For Partially Labeled Sequence Completion" Authors: Chad A. Williams, Peter C. Nelson, and Abolfazl Mohammadian.
October 30, 2009
CTS welcomes Dr. Darcy Bullock, School of Civil Engineering, Purdue University, who will present a seminar entitled Download: "Visualization and Assessment of Arterial Progression Quality Using High Resolution Signal Event Data and Measured Travel Time" Friday, October 30, 2009 11:00 - 12:30 p.m. Room 1047 ERF (PLEASE NOTE LOCATION) Engineering Research Facilities (ERF) 842 West Taylor Street Abstract: Coordination is essential to providing the highest possible quality of service on signalized arterial through movements, and travel time is its most accurate yet most expensive measure. This talk presents a methodology for evaluating signal coordination that combines high resolution signal data with travel time measurement using Bluetooth device MAC address matching. The Purdue Coordination Diagram (PCD) is introduced as a tool for visualizing and quantitatively evaluating signal performance and identifying opportunities for improvements. This diagram plots the arrival time of each vehicle at an intersection using input from setback detectors, in combination with information about the phase state (red and green intervals). On a cycle-by-cycle basis, it is possible to view the arrival of each platoon relative to the start and end of green. At a higher level, the performance of the green band can be qualitatively evaluated through visual inspection of the concurrence (or lack of) of vehicle platoons within the green bands. Quantitative measures such as the percent of vehicles arriving on green can be extracted from aggregation of the data. The impact of offset adjustments can be predicted from manipulation of PCDs for an arterial corridor. Arterial travel times were measured using MAC address matching using intersection and midblock detecting stations to identify time periods with opportunities to make timing improvements. Using this technique, optimal offsets were calculated for a Saturday plan on a four-intersection signalized corridor, and the operational impacts were estimated. These offsets were then implemented. The number of vehicles in the corridor arriving on green increased from 56% to 66%, while median northbound travel time observed by tracking Bluetooth devices decreased by 1.2 minutes. The talk concludes by discussing the application of Bluetooth tracking to airport security lines and work zone origin-destination research. Biography: Darcy Bullock joined the Purdue civil engineering faculty in January 1998. Bullock grew up in Guilford, Vermont and attended Guilford Central School and Brattleboro Union High School. He received a B.S. in Civil Engineering from the University of Vermont (1987), and a M.S. (1988) and a Ph.D.(1992) in Civil Engineering from Carnegie Mellon University. Dr. Bullock is a Registered Professional Engineer in the States of Louisiana and Indiana. Prior to joining the Purdue faculty, he was an assistant/associate professor in the Civil Engineering Department at Louisiana State University from 1993-1997. Bullock's teaching, research and consulting interests are in the general area of Intelligent Transportation Systems (ITS). Over the past several years he has been actively involved in the hardware and software for the next generation of ITS traffic signal controllers. He is currently working on several sponsored projects involving real-time traffic signal systems. To learn more about Dr. Bullock, please see: http://cobweb.ecn.purdue.edu/~darcy/ |
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