| Article ID: | iaor1993189 |
| Country: | United States |
| Volume: | 25B |
| Issue: | 5 |
| Start Page Number: | 281 |
| End Page Number: | 292 |
| Publication Date: | Oct 1991 |
| Journal: | Transportation Research. Part B: Methodological |
| Authors: | Williams L.W.C.H., Lam W.M. |
| Keywords: | investment |
The authors extend the treatment of paper I (Abstract 51241) to consider the contribution of various travel responses to user benefits when constrained spatial interaction models are adopted to appraise a variety of highway projects. A comparison is made of the benefit measures derived from constrained and unconstrained model forms, and the implications for the methods of investment appraisal assessed.