| 摘要 |
PURPOSE: A traffic information system and method using simultaneous measurements are provided to provide accurate traffic information by collecting traffic information, position information, and speed/direction information. CONSTITUTION: In a traffic information system and method using simultaneous measurement, a plurality of vehicle mounted terminals(A,B,C) are mounted in vehicles which are dispersed in certain regions. The vehicle mounted terminals packet position data in a certain format. The vehicle mounted terminal includes a GPS receiver, a position and speed calculation unit, and a communication unit. A traffic information collection sever(200) classifies the position data by time and position and then takes statics based on the position data to generate traffic information. A traffic information collection server provides traffic information to a user. |
