| Article ID: | iaor19951779 |
| Country: | United States |
| Volume: | 28B |
| Issue: | 5 |
| Start Page Number: | 391 |
| End Page Number: | 394 |
| Publication Date: | Oct 1994 |
| Journal: | Transportation Research. Part B: Methodological |
| Authors: | Bernstein David, Sanhouri Ibrahim El |
| Keywords: | measurement |
This note corrects a small but important error in the uniform portion of the socially optimal step toll derived by Arnott et al. In particular, the authors show that this toll is actually a function of the values of travel time, early arrival time, and late arrival time (i.e., not just the value of travel time). In addition, they show that the toll needed to obtain the optimal route split in the presence of a time-varying step-toll is different from the one that is needed in the absence of any time-varying toll.