2007 Fiscal Year Final Research Report Summary
Development of a new traffic assignment method on hybrid road network
| Project/Area Number |
18360246
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
交通工学・国土計画
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
YOSHII Toshio Kyoto University, Graduate School of Engineering, Associate Professor (90262120)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KITAMURA Ryuichi Kyoto University, Graduate School of Engineering, Professor (60252467)
KIKUCHI Akira Kyoto University, Graduate School of Engineering, Assistant Professor (00343236)
|
|---|
| Project Period (FY) |
2006 – 2007
|
| Keywords | Traffic assignment / Simplified road network / Traffic simulation / Equilibrium flow / Route choice behavior / Local street |
|---|
| Research Abstract |
This research proposes a new traffic assignment method on the hybrid road 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. This research 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. Moreover, a traffic simulation model is established, which can estimate dynamic user equilibrium flow approximately on the hybrid road network.
|
