| 摘要 |
PROBLEM TO BE SOLVED: To preferentially display the information of the block in the direction to which many of drivers looking at a display unit arranged at a reference block travel. SOLUTION: This display device is provided with the display unit 4 arranged at the block to be a reference for a road constituted of plural blocks parted by branch points 2, and plural vehicle detectors C1 to C9 arranged at each block and detecting vehicles passing through each block. Then, based on each of vehicle information respectively detected by each of vehicle detectors C1 to C9 , a traffic volume rations P1 to P9 at each block showing the ratio of vehicles passing through respective blocks other than the reference block to the plural vehicles passing through the reference block are calculated to select the information to be displayed out of information concerning vehicle traffic at respective detected blocks. Selected information is displayed on the display 4 lastly. |
