Over-the-horizon Heavy Vehicle Safety Speed Warning System in Mountainous Area

Paper #:
  • 2017-01-0091

Published:
  • 2017-03-28
Author(s):
Abstract:
Mountainous roads have complex terrain. Traditional vehicle active safety system, such as ABS, only play a role when there's an emergency situation, and the loading rate is not high in the heavy vehicle. So the traffic accident rate is still high in the mountainous area. Researches show that if drivers react before the accident 2-3 s there could be 90% reduction in the accident rate. This safety speed warning system is combined with the digital map, which makes the drivers see the mountainous road information beyond the horizon. Compared to the road standard speed limit, the system combination with the road information and characteristics of heavy vehicle itself can provide a more accurate and more useful safety warning speed limit. It can effectively reduce the incidence of accidents. The system input is composed of the vehicle real-time location information by GPS and vehicle’s underlying data, then it can access curves and slope information after real-time processing the underlying data; combined with digital map, the next time when passing the same section the over-the-horizon road information can be called ahead of time. At last the early warning system give a safe speed output by safety velocity model. This scheme bases on the mountain heavy vehicle over-the-horizon warnings, which can give the drivers enough reaction time, this system can effectively reduce the brake fever in the downhill and prevent rollover in the curve. There is positive significance in the heavy vehicle driving safety. Key word: over-the-horizon, heavy vehicle, Safety speed warning
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