Relativity between Operating Speed and Posted Speed Limit on Classified Highway

Posted speed limit doesn't have direct impact on accidents,but on the contrary,it acts on the road safety through its influence over the operating speed.Therefore,it is essential to analyze the relationship between them.In the conditions of the same speed limit value,there are some comparisons between 1st-class highways and 2nd-class highways about operating speed.It can be found that posted speed limit has significant impact on operating speed,and the operating speed is usually larger than the posted speed limit.With the change of the posted speed limit,the operating speed can reduce or increase accordingly.