With the rapid development of economy and continuous expansion of transport network, the rate
of traffic accidents in Yunnan Province has been rising continuously. Among them, the
problems of overlimit and overload in road transport enterprises are particularly prominent,
and it is of significant difficulties to manage. To reduce the risk of accidents, it is
extremely important to control the overlimit and overload of road transport in Yunnan
Province. The substantial measures are to strengthen supervision and control of the source of
freight. This requires “five major systems”as the main body, to establish and improve the
mechanism of supervision for the source of freight, and to carry out specific work with the
“three major sources”as the path of implementation of freight supervision to
comprehensively manage for real outcome.