| Article ID: | iaor1989596 |
| Country: | United States |
| Volume: | 23B |
| Issue: | 5 |
| Start Page Number: | 331 |
| End Page Number: | 336 |
| Publication Date: | Oct 1989 |
| Journal: | Transportation Research. Part B: Methodological |
| Authors: | Fisk C.S. |
This paper examines different formulations for estimating trip matrices on congested networks from link traffic count data. It is shown that several existing approaches can be expected to produce the same results when observed counts constitute a user optimal link flow pattern. This has important practical implications because of the computational difficulties associated with some of the formulations.