Abstract: Japanese urban expressway networks contain not only the usual outside ramps, but also many inside ramps. Although the inside ramps do not block off adjacent and always‐expensive urban property, the design is less desirable ...

Abstract: Expressway networks in large urban areas are often tied up with increasing traffic demands from many large commercial vehicles. These traffic conditions are preventing the expressway networks from their original function ...

Abstract: In Japanese expressway systems, congestion occurs on many sections around large urban areas. In order to investigate countermeasures for these bottleneck sections, a traffic simulation model is developed which computes ...

Abstract: The outline and results of an aerial traffic survey of an 800‐m section of the Hanshin Expressway are described. The objectives of the study were to record congested traffic flow and to determine its causes. Traffic in the ...