Dynamic speed guidance for active highway signal coordination: roadside against in‐car strategies
Dynamic speed guidance for active highway signal coordination: roadside against in‐car strategies
- Neue Suche nach: Sun, Jian
- Neue Suche nach: Chen, Shenyang
- Neue Suche nach: Sun, Jian
- Neue Suche nach: Chen, Shenyang
The effectiveness of signal coordination can be undermined by over‐long spacing and different vehicle dynamic characteristics between neighbouring signal intersections in a signalised highway system. This study presents two dynamic speed guidance (DSG) strategies based on the traffic environment and facility deployment to congregate the traffic flow and optimise the arterial coordinated signal control system. One of them is the in‐car display for individual guidance, and the other is the roadside display for group guidance. The two DSG strategies are calculated using the rolling horizon approach. A simulation platform that integrates data communication, traffic mobility and DSG application is programmed based on VISSIM, a microscopic simulation model. A section of Cao'an highway is used to assess the efficiency of two DSG strategies. The assessment results show that both the average stops and travel time of arterial vehicles can be optimised with the application of the two DSG strategies. In addition, the in‐car strategy provides a significant benefit for on‐board unit equipped vehicles, even in a low level of market penetration rate.
Dokumentinformationen
Dynamic speed guidance for active highway signal coordination: roadside against in‐car strategies
IET Intelligent Transport Systems ; 7 , 4 ; 432-444
2013-12-01
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
traffic mobility , dynamic speed guidance strategy , average vehicle stop , signalised highway system , VISSIM software , DSG strategy , traffic flow , roadside display , vehicle travel time , digital simulation , traffic engineering computing , microscopic simulation model , in‐car display , Cao'an highway , facility deployment , arterial coordinated signal control system , traffic environment , in‐car strategy , data communication , active highway signal coordination , rolling horizon approach , road traffic control , dynamic speed guidance , control engineering computing , market penetration rate , velocity control , DSG application
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