ESTIMATION OF THE TRAFFIC SITUATON IN THE SIGNALIZED INTERSECTION USING VEHICLE TRAJECTORY DATA

Abstract

 The whole country road street traffic situation investigation set by the Ministry of Land, Infrastructure and Transport is having for its object to get the basic material to grasp the present state of the whole country road traffic and a problem and settle on a maintenance plan on the road for the future¹⁾. The investigation method has a road condition investigation by road register and measurement and a overall travel speed investigation by traffic count by a mechanical observation, ETC2.0 probe information and the public car probe data. However, a car with ETC2.0 is about 6 % of the whole country vehicle possession number (March, 2020). The area which can be acquired is decided, and ETC2.0 probe data can't acquire position information of all networks. Therefore, I think the present road investigation isn't enough for volume of information to grasp the traffic situation, and position information of all vehicles and position information of all networks are more necessary than the abovementioned thing. In this study, a video investigation was put into effect in a road just before the signalized intersection and the vehicle location of the driving lane and the passing lane was acquired from video data. And the vehicle trajectory was made from the vehicle location. Further, time headway was calculated using the vehicle trajectory data and car following model. I have for my object to grasp, compare and consider the congestion situation of 2 lanes of the driving lane and the passing lane.