| 摘要 |
PROBLEM TO BE SOLVED: To appropriately provide a relevant vehicle with information on a road with poor visibility by specifying a vehicle heading therefor out of vehicles approaching an intersection with poor visibility. SOLUTION: An intersection system is provided with a radio wave source detecting apparatus 2 for detecting a radio wave source by receiving radio waves from ITS onboard units 3a and 3b near an intersection; an optical beacon 17 disposed near the intersection of a running road T2a and detecting a vehicle C approaching the intersection; and a DSRC roadside wireless device 1 for measuring a relative distance between the vehicle C and the ITS onboard unit 3a when the ITS onboard unit 3a on a right-turn lane is specified out of the plurality of ITS onboard units 3a and 3b detected by the radio wave source detecting apparatus 2 and the vehicle C is detected on the second running road T2a, to inform the ITS onboard unit 3a to draw attention to the vehicle C by wireless communication. COPYRIGHT: (C)2009,JPO&INPIT
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