transport route;
5.Its prosperity of commercial transport was in the Tang Dynasty(618-907). The popular route was from Hanoi of Vietnam to the north,entered the southeast and south Yunnan before taking a land route to Kunming in the north,or went westwards to west and southwest Yunnan before entering the present-day Burma,or went northerly west before entering the present-day India,thus forming an international water-land transport line from Yunnan to Southeast Asia and South Asia.
8.The advanced Traveler Information Systems (ATIS) is a subject of Intelligent Transport System (ITS). The ATIS provide all kinds of information to the travelers who use all kinds of conveyances to destination. The study on Vehicle Dynamic Route Guidance Systems (VDRGS) is an important research in the field of ATIS, Which guide the travelers by providing them with optimal route based on real-time traffic information.
10.Abstract: This paper sets up a logarithm multi-routes choice model of transport passage system predicating on the maximum of system utility and puts up the demarcating method of its parameter and its numerical solution.Then it gives an example.This model can forecast the ration of traffic distribution on each route in a network.It can also be used to analyse influence of service attribution on road users? choice of routes.

