TRAFFIC VOLUME MEASUREMENT DEVICE, TRAFFIC VOLUME MEASUREMENT METHOD, AND TRAFFIC VOLUME MEASUREMENT PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a traffic volume measurement device that can obtain a degree of saturation at an inflow passage in an intersection and reduce time and cost spent for maintenance.SOLUTION: In an image input part 3, a photographic image of an intersection where a signal light is installed is input. Vehicle tracking parts 411 and 421 process the photographic image input in the image input part 3 and tracks a vehicle traveling in the intersection. According to the vehicle tracking result from the vehicle tracking parts 411 and 421, passing vehicle number obtaining parts 412 and 422 obtain the number of vehicles passing the intersection for each inflow passage of the vehicle into the intersection, and vehicle speed obtaining parts 413 and 423 obtain a representative value of speed of the vehicle passing the intersection. A DS estimating parts 414 and 424 estimate a DS for each inflow passage of the vehicle into the intersection, using representative values of the number and speed of the vehicle passing the intersection.SELECTED DRAWING: Figure 4