目前,许多部门和驾驶人纷纷反应道路限速过低,路难行、罚款重。公路主管部门设置道路限速过低,造成公路资源浪费,使国家的巨额资金投入没能发挥应有的效益;公安交管部门进行监控,对超速者进行处罚,造成驾驶人怨声载道。如何协调安全与畅通的关系、合理设定行车速度,成了当前交 At present, many departments and motorists have responded that the road speed limit is too low and that the road is difficult and the fines are heavy. Highway authorities set the road speed is too low, resulting in a waste of road resources, so that the state’s huge investment failed to play its due effectiveness; public security traffic control department to monitor the speeding penalties, resulting in driver complaints. How to coordinate the relationship between safety and smooth, reasonable set traffic speed, has become the current pay