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Best professor,

I have an efficient design with three alternatives. alt1, alt2 and PE-PE (alt3).So, there is a dummy variable combo that has 9 values 1 till 9. Each represent an combination of an access alternative (BTM, bike, walking) and an egress alternative (BTM, Bike, walking).

My question ...

Best professor,

Thank you for the reply.

I have two last last questions.

I will ask the respondent two questions of two trips. So I designed two experiments.

1) When estimating the coefficients, can you just add the two datasets together and estimate a nested logit model and MNL and ML?

2) I ...

Best professor,

Thank you for your reply.

At the first answer you gave from the 5 questions, I have a question. So I use alternative specific coefficients, not generic. So that means I cannot use a coefficient for the constant of access_BIKE_WAT[3] and access_PE_WAT[3]. In the presentation of the ...

Best professor,

Below is the code I use for my choice experiment. I have a few questions:

1) I want to include a variable for BIKE and PE, called "access_BIKE_WAT" and this variable should have a fixed value of 3. How to code this? The variable is only for this alternative of BIKE. PE also should ...

Best professor,

Yes it is indeed clear now.

Thanks for all the help. You have helped me a lot with the design and I really appreciate your time and effort to answer all the questions.

Best Professor,

I see that many posts have been removed.

I still have a question.

So once again the design:
access choice experiment with 12 rows
egress choice experiment with 12 rows
context experiment with 12 rows.

Every respondent have a row from each design.

You suggested last time to ...

Best professor,

Thank you for your reply.
Because I have few constraints, I opted for the d-efficient design. Below I have 3 programs as you suggested, access, egress and the context. I have few questions.
1) Do you have any comments on improvement for the codes?
2) I choose to do 12 rows with 3 ...

Best professor,

Thank you for your reply.

So the access and egress choice tasks can be generated separately.

But how to ensure that the context variables are the same for both access and egress choice tasks?

I can include the context variables in the access mode alternatives utility functions ...

Best professor,

Thanks for your reply.

I am also thinking of how to program this.

So I have two choice experiments. One for access and one for egress with the options e-scooter, bike, walking and BTM for both access and egress.
With Ngene I generate two experiments.

I explained earlier ...

Best professor,

I have a choice experiment that I want to carry wchich consist of a access (to the train station) and a egress (from the train station) part.

The access consist of walking, public transport, bike, e-scooter and shared modes.
The egress consist of walking, public transport, bike ...