A Study on the application of the traffic flow model using the road detector data

摘要

Though the traffic flow has been measured by the road detector so far,the probe car system isshowing the extension as a new measurement technique.By the road detector data and theprobe car data that exists in a complementary relation are united, it seems that thedissemination that which is more accurate and suitable for needs becomes possible.Thepresent study expands spatially by uniting the road detector data with the probe car data, andis an examination of the calculation of the reliability index of more highly accurate OD traveltime.The traffic state was reproduced by applying the road detector data on Tokyo MetropolitanExpressway by the traffic flow model, and the systemto calculate the OD travel time based onit was constructed.Moreover, the system that easily extracted the road detector data and probecar data of the same timeat once same locationon Tokyo Metropolitan Expressway wasconstructed. And those data was compared and the relation was understood.However, it wasclarified that the presumption system that used only the traffic flow model caused the problemin the repeatable precision according to the study site.