2019 Volume 18 Issue 2 Pages 106-111
In recent years, shared autonomous vehicle (SAV) services have expanded with the expectation of reducing traffic congestion and environmental loads. Nevertheless, SAV might induce greater amounts of traffic from public transportation and instead worsen congestion and environmental loads. The objective of this study is to support the introduction of traffic planning and SAV in a city. This study proposed a new model to calculate changes of travel distance of vehicles by introducing SAV based on population density and car mode shares. Application of this model to national/global cities revealed that 1) in transit-oriented cities such as Tokyo, the travel distance of vehicles might increase because of traffic induced from public transportation. 2) In some car oriented cities such as Chicago and heavily populated cities such as Taipei, increased travel distance of vehicles can be suppressed or reduced.
