Stated preference survey for estimating passenger transfer penalties: design and application to Madrid

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Table 2 Attribute levels considered and prior parameters (pilot and final surveys) as input of Ngene software

Utility function	Coefficients	Prior parameters		Attributes	Levels
Utility function	Coefficients	Pilot survey	Final survey	Attributes	Levels
U (T₀): no-transfer	tveh00	−.2000	−.3573	tveh0	35, 40, 45
U (T₀): no-transfer	mode00	1.0000	.5000*	mode0	0, 1
U (T₁): one transfer	constant1	−1.0000	−3.9160	constant1	–
	tveh01	−.2000	−.3705	tveh0	9, 12, 15
	mode01	2.0000	.6236	mode0	0, 1
	twalk11	−.2500	−.3407	twalk1	2, 4, 6
	twait11	−.2000	−.3320	twait1	2, 5, 8
	stair11	−1.0000	−.7000*	stair1	0, 1
	tveh11	−.2000	−.3448	tveh1	9, 12, 15
	mode11	2.0000	.6000*	mode1	0, 1
	info1	2.0000	.7000*	info	0, 1
	crowd1	−2.0000	−1.0272	crowd	0, 1
U (T₂): two transfers	constant2	−1.1000	−5.7962	constant2	–
	tveh02	−.2000	−.3255	tveh0	4, 7, 10
	mode02	1.1000	1.5000*	mode0	0, 1
	twalk12	−.4000	−.3570	twalk1	2, 3, 4
	twait12	−.3000	−.4379	twait1	1, 3, 5
	stair12	−1.0000	−1.1385	stair1	0, 1
	tveh12	−.2000	−.4372	tveh1	4, 7, 10
	mode12	1.1000	1.5490	mode1	0, 1
	twalk22	−.4000	−.9148	twalk2	2, 3, 4
	twait22	−.3000	−.3712	twait2	1, 3, 5
	stair22	−1.0000	−.7091	stair2	0, 1
	tveh22	−.2000	−.2790	tveh2	4, 7, 10
	mode22	1.1000	1.5000*	mode2	0, 1
	info2	1.1000	.7000*	info	0, 1
	crowd2	−1.1000	−2.3642	crowd	0, 1

*Prior parameters differ from the results of the MNL model as the parameters were not significantly different from zero at the 95% level