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Transit Signal Priority Experiment in a Connected Vehicle Technology Environment
| 题名： | Transit Signal Priority Experiment in a Connected Vehicle Technology Environment |
| 其他题名： | Ahn,K.,Rakha,H.,and Hale,D.K.(2015)."Multi-modal intelligent traffic signal systems(MMITSS)impacts assessment."Final Rep.,U.S.Dept.of Transportation,Washington,DC. |
| 正文语种： | 英文 |
| 作者： | Young-Jae Lee |
| 关键词： | Transit signal priority;Connected vehicle;Field experiment;Global positioning system (GPS);TSP logic based on connected vehicle technology (TSPCV) |
| 摘要： | Connected vehicle (CV) technology allows developing next-generation transit signal priority (TSP) that is based on cooperation between signals (change signal timing) and buses (alter speed). In this study, a CV-based TSP that was previously developed and evaluated through a computer simulation was tested in the field. The field experiment at the Smart Road testbed at the Virginia Tech Transportation Institute (Blacksburg, Virginia) validated the feasibility of CV-based TSP and evaluated its performance. The proposed TSP algorithm properly delivered TSP green times to buses with a 100％ success rate. In addition, it reduced delays—between 32 and 75％—for a bus traveling approximately 72.4 km=h (45 mi=h) and a traffic signal with a 90-s cycle length with 30-s green time. Moreover, the field experiment showed that regular and differential global positioning system (GPS) devices demonstrate no statistically significant difference in performance. This finding could facilitate large-scale implementation of the TSP logic based on connected vehicle technology (TSPCV) because the regular GPS devices are readily available and much cheaper than differential GPS devices. |
| 出版年： | 2017 |
| 论文唯一标识： | P-72Y2017V143N08017 |
| 英文栏目名称： | CASE STUDIES |
| doi： | 10.1061/JTEPBS.0000062 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 143 |
| 期： | 08 |
| 页码： | 161-172 |
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