| 摘要 |
A road safety system for alerting a driver of a vehicle 14 of hazards, the system comprising: a plurality of transponders 16a, 16b, 16c mounted along a road and an onboard module 20 for mounting on the vehicle 14, said onboard module 20 for receiving signals from said transponders 16a, 16b, 16c and for alerting said driver of said hazards.
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