An Adaptive Urban Traffic Signal Control System with Bus Priority

Autor: Chang, Tzu-Lin, 張慈麟
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 101
In recent years, with the economic development and urbanization, traffic congestion has become a serious problem in urban environments. So, traffic signal control plays a key role in Intelligent Transportation System (ITS). Particularly, bus system can carry a higher capacity of passengers, which help to relief traffic jam in cities. Thus, it is important to consider bus priority during traffic light control. However, different from ordinary vehicles, bus system has some unique features, including higher capacity of passengers, fixed routes and specific requirements on bus schedules and headways. In this thesis, we propose an adaptive traffic signal control system with bus priority. By collecting traffic information from roadside detectors and buses, we jointly consider how the above factors change buses priority and the impact to ordinary vehicles. Simulation results show that our system can significantly reduce total waiting time of both buses and ordinary vehicles and keep the schedule and headway on time.
Databáze: Networked Digital Library of Theses & Dissertations