Abstract
This paper proposes the simplified network which consists of two types of links, one is “aggregate link” that represents many routes and mainly deals with streets, the other is“arterial link”that represents the road section and mainly indicates arterials. The simplified network can be formed with smaller number of links comparing to one including all roads, arterials and streets. Moreover, this paper shows the equivalence between the assignment on the simplified network and on the network of all roads on the assumption and using the special utility function in the route choice model. As for the assumption, the study is assuming that the cognitive travel time of all routes from Origin to Destination is the same within the streets area, which is surrounded by arterial links. On the other hand, the special utility function is adopted that can be divided into several road sections.
