الفهرس 
Effectiveness of variable message signs in improving the road network performance through route guidance
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Abstract
Over the last few decades in Egypt, traffic volumes have been increasing on road networks leading to congestions during peak hours. This could be mainly attributed to the lower efficiency of the road networks in terms of the traffic distribution and the randomness of driver{u2019}s behavior. In an effort to ease traffic congestions, several methodologies were implemented that involve changing the geometrics of the road network or building new infrastructure. Converting traffic flows at intersections to U-turns to prevent left turns, building new bridges or tunnels, permanent closure of access to roads and rerouting traffic are a few examples of such enhancements. These methods have proven to be temporary as they improve the road network according to the current traffic flow and ignore the future demands of the road network. Therefore, there is a need to find innovative ways to manage the increasing demand on the road network. This research aims provides a methodology for providing traffic management on congested road networks in Egypt by means of route guidance through the use of variable message signs. Variable message signs are portable and easy to apply, and this research has proven its success in reducing travel times and queue lengths, therefore increasing average traveling speeds