Today .the interstate system links every major cit
问题详情
Today .the interstate system links every major city in the U.S,and the U.S with Canada and Mexico,Built with safety in mind the highways have wide lanes and shoulders,dividing medians,or barriers,long entry and exit lanes,ourves engineered for safe turns,and limited access,The death rate on highways is half that of all other U.S roads (0.86 deaths per 100 million passenger miles compared to 1.99 deaths per 100 million on all other roads)
By opening the North American continent,highways have enabled consumer goods and services to reach people in remote and rural areas of jobs,access to the growth options in terms of jobs access to cutural progreams health care ,and other benefits.Above all,the interstate system provides individuals with what they enerish most:personal freedom of mobility.