Title page for ETD etd-12162011-052951


Type of Document Master's Thesis
Author Rajasekhar, Lakshmi
Author's Email Address lakshmir@vt.edu
URN etd-12162011-052951
Title Microscopic Control Delay Modeling at Signalized Arterials Using Bluetooth Technology
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Abbas, Montasir M. Committee Chair
Hobeika, Antoine G. Committee Member
Murray-Tuite, Pamela M. Committee Member
Keywords
  • Bluetooth based traffic data collection
  • Control delay modeling
  • Bluetooth MAC ID
Date of Defense 2011-12-05
Availability unrestricted
Abstract
Real-time control delay estimation is an important performance measure for any intersection to improve the signal timing plans dynamically in real-time and hence improve the overall system performance. Control delay estimates helps to determine the level-of-service (LOS) characteristics of various approaches at an intersection and takes into account deceleration delay, stopped delay and acceleration delay. All kinds of traffic delay calculation especially control delay calculation has always been complicated and laborious as there never existed a low-cost direct method to find them in real-time from the field. A recent validated technology called Bluetooth Median Access Control (MAC) ID matching traffic data collection technology seems to hold promise for continuous and cost-effective traffic data collection. Bluetooth traffic data synchronized with vehicle trajectory plot generated from GPS probe vehicle runs has been used to develop control delay models which has a potential to predict the control delays in real-time based on Bluetooth detection error parameters in field. Incorporating control delay estimates in

real-time traffic control management would result in significant improvement in overall system

performance.

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