contributor author | Guoyuan Wu | |
contributor author | Liping Zhang | |
contributor author | Wei-bin Zhang | |
contributor author | Masayoshi Tomizuka | |
date accessioned | 2017-05-08T22:02:04Z | |
date available | 2017-05-08T22:02:04Z | |
date copyright | April 2012 | |
date issued | 2012 | |
identifier other | %28asce%29te%2E1943-5436%2E0000387.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/69352 | |
description abstract | In urban areas, conventional transit priority systems (e.g., passive priority) present some problems, such as causing too many traffic delays and degradation of on line performance due to the lack of real-time data. The purpose of this study is to develop an on line adaptive priority strategy to optimize traffic operation at a series of consecutive grade crossings in urban areas. The proposed strategy takes into account the impact on cross-street traffic as well. A mathematical model of non linear programming with linear constraints is formulated to minimize overall passenger delays at grade crossings for light rail transit and to minimize the impact on cross-street traffic. The optimization is enabled by real-time arrival-time prediction with GPS-equipped vehicles. To exhibit the anticipatory performance of the proposed strategy, both a numerical analysis and a simulation test are conducted with trolley operation along a stretch of C Street in San Diego. Compared with current signal timings, those obtained from the proposed strategy demonstrate promising results. | |
publisher | American Society of Civil Engineers | |
title | Signal Optimization at Urban Highway Rail Grade Crossings Using an Online Adaptive Priority Strategy | |
type | Journal Paper | |
journal volume | 138 | |
journal issue | 4 | |
journal title | Journal of Transportation Engineering, Part A: Systems | |
identifier doi | 10.1061/(ASCE)TE.1943-5436.0000344 | |
tree | Journal of Transportation Engineering, Part A: Systems:;2012:;Volume ( 138 ):;issue: 004 | |
contenttype | Fulltext | |