Study on signal control strategy and performance evaluation
Date Issued
2005
Date
2005
Author(s)
Chu, Hsiao-Ling
DOI
zh-TW
Abstract
As traffic volumes and driving conditions change throughout the day, different traffic signal control strategies and criteria are applicable. In order to reduce traffic jam and improve transportation efficiency, signal control is the fast and effective way and it is also the foundation of developing intelligent area signal controller. Intelligent area signal controller can be considered a traffic information center to share some tasks of traffic management information center (TMIC), and decision of signal control strategies is one of these tasks. To achieve the objective of real-time response, the signal control strategy must be simple and be carried out on microprocessors, so the program must be run on different platforms. (In this thesis, JAVA is used to be the programming language.)
This study attempts to determine the best suitable signal control strategy which includes semi-actuated control, dynamic computation control, adaptive control and pre-time control produced by Synchro under different traffic conditions by micro-simulation of traffic flow. We take isolated intersection as an example, and the phase pattern is simple two-phase pattern to simplify the question. All chosen control strategies would be written application programs which can be implemented after they are installed in signal controllers independently. This study adopts average stopping delay as the performance index, and divides traffic conditions into nine levels in accordance with degree of saturation to simulate. The result of simulation could be for reference of signal control strategy implements in the future.
Subjects
號誌控制策略
觸動控制
動態計算控制
適應性控制
定時控制
Signal control strategy
semi-actuated control
dynamic computation control
adaptive control
Pretimed signal control
Type
thesis
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