|Table of Contents|

Optimization of arterial green-wave considering turning tram lines (PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2020年01期
Page:
204-214
Research Field:
交通信息工程及控制
Publishing date:

Info

Title:
Optimization of arterial green-wave considering turning tram lines
Author(s):
WANG Hao LI Chang-ze
(School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China)
Keywords:
traffic signal control arterial signal coordination control multi-modal green-wave turning tram multipath changeable phase order
PACS:
U482.1
DOI:
10.19818/j.cnki.1671-1637.2020.01.017
Abstract:
In order to make up for the lack of ability to optimize the arterial green-wave including trams, an arterial green-wave optimization model based on the multipath green-wave model was proposed, and the efficiency and independent operation of the arterial turning trams and the through social vehicles were ensured. The coordination relationship between the signal phases of tram line and the arterial social vehicle was determined, and the basic constraints of arterial green-wave model were constructed. Considering the acceleration and deceleration characteristics of tram stopping process, as well as the clearance time requirements when passing through the intersection, a supplementary constraint condition for the tram was established. The phase sequence control variables were set, the solution space was enlarged, and the modeling ability of arterial green-wave optimization model was improved. The travel time variables were set to ensure that social vehicles travel within the safe speed specified on the road section, ensure the unity of the total travel time of outbound and inbound trams, and ensure the efficient and reasonable schedule operation. Under the condition of meeting the basic requirements of green-wave bandwidth of trams, an objective function for maximizing the green-wave bandwidth of social vehicles was constructed. The arterial green-wave optimization model was used to optimize the coordination of traffic signals at 4 intersections along the arterial section of Nanjing Qilin Town tram. Research result shows that the arterial green-wave optimization method can optimize the phase sequence of signals at intersections, and provide for trams a green-wave with a turning phase. The optimized arterial signal cycle is 142.4 s, the phase differences between intersections are 0, 116.8, 52.0, 5.7 s, the green-wave bandwidth of unidirectional social vehicles is 26.6 s. The green signal ratio of outbound and inbound social vehicles reaches 37.4%, and the green-wave bandwidth of tram is 10 s, which meets the traffic requirements of artery system. 6 tabs, 10 figs, 30 refs.

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Last Update: 2020-03-24