Analysis of Rescue Lane Design Method on Mountain Way

The traffic accidents,made by the heavy-duty lorry and due to breaking failure,happen from time to time on the downhill path of mountainous expressway. This text,through the stress analysis of the heavy-duty lorry when it out of control,probes into the reason and regular pattern of the vehicle's braking failure on the long and steep downhill path,thus comes out the relationship between the heavy-duty lorry's braking failure and the gradient,slope length on the long and steep downhill path,get the calculation formula of the speed and gradient,slope length after the braking failure,put forward the reasonable location of the rescue lane setup of the adjacent rescue lanes.