Abstract
Traffic jams caused by repair work at night on the Expressway are seen even less traffic flow than that of the capacity. In order to illustrate this phenominon, vehicle movements by time at a merging zone, where usually one of lanes is regulated to pass, must be traced microscopically. This study is (1) to develop the system with high accuracy and efficiency for obtaining time spacial data of running vehicles at the merging zone, (2) to analyze a set of 3 different trajectories of the merging, the foregoing and the following vehicles simultaneously, and (3) to derive some probabilistic distributed characteristics from the time serial locational relations of the above set of vehicles.
