Thanks for the reply, Stephane.
Regarding the alpha parameter, the idea is to create a link between the total travel time used in the mode choice experiment and the decomposed time components used in the route choice experiment.
Since access and in-vehicle time are not available in the first ...
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Search found 3 matches
- 09 Mar 2026, 14:36
- Forum: Model specification
- Topic: Combining experiments and feasibility of using nested logit structure
- Replies: 3
- Views: 41707
- 02 Feb 2026, 17:47
- Forum: Model specification
- Topic: Combining experiments and feasibility of using nested logit structure
- Replies: 3
- Views: 41707
Combining experiments and feasibility of using nested logit structure
Hi!
I'm working on a SP survey which consists of two DCEs:
1 - The first and principal one is a mode choice experiment, with two alternatives (actual mode vs train) with two attributes (total time and cost)
2 - The second one is kind of a route choice experiment, with two alternatives (train 1 vs ...
I'm working on a SP survey which consists of two DCEs:
1 - The first and principal one is a mode choice experiment, with two alternatives (actual mode vs train) with two attributes (total time and cost)
2 - The second one is kind of a route choice experiment, with two alternatives (train 1 vs ...
- 14 Dec 2023, 23:28
- Forum: Errors during model validation and/or estimation.
- Topic: "Estimation failed. No covariance matrix to compute" with Box-Cox Utility
- Replies: 1
- Views: 7324
"Estimation failed. No covariance matrix to compute" with Box-Cox Utility
Hi everyone.
A quick introdution:
I work with transport studies and there's this software we use, PTV Visum, which provides a variety of choice models to distribute travel demand along paths stochastically (route choice). First we setup the utility of the routes (for example, B0 * time + B1 ...
A quick introdution:
I work with transport studies and there's this software we use, PTV Visum, which provides a variety of choice models to distribute travel demand along paths stochastically (route choice). First we setup the utility of the routes (for example, B0 * time + B1 ...