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R. Moayedfar,
Volume 7, Issue 3 (7-2017)

Today’s, a common problem in cities is increasing delay and reducing the speed of traffic. On the other wise increasing costs of acquisition in urban area are not allow new routes and highways. Also construction of new highway or street such as Imam Ali highway and Sadr highway in Tehran lead to develop new applications (such as BRT lane ,…) And become quickly saturate and less efficient. Therefore traffic Management could be more effective in controlling traffic with lower costs. Variable message sign is one of these management solutions. For this purpose, two parallel streets ENGHELAB and JOMHORI are selected to study. The result of this research show that implementation of this variable message sign when accident occur and abstraction the road and using strategy of change way can reduce 100 sec/km of delay time and reduce fuel consumption to 400 lit/hr that it means saving about 667 thousand dollar in fuel consumption and delay time.

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