Road Network Optimization for Increasing Traffic Flow

In the traffic flow on the city road network, it is observed that a new additional road, which is constructed for overcoming the traffic jam, causes more terrible traffic jam. This is well known as Braess’s paradox. Recently, it is pointed out that Braess’s paradox depends on the traffic density and the paradox disappears at high traffic density. The aim of this study is to describe the algorithm for increasing traffic amount by changing road network. The algoriothm is applied for simple numerical example. The road networks are determined at different traffic density. The results show that the road network for increasing traffic flow depends on the traffic density and, at high traffic density, the Braess’s paradox may disappear.