Table 3.
Exogenous variables used in the mixed logit model.
| Name | Description | Type | Level |
|---|---|---|---|
| AGE | Age | Metric | Individual |
| COST | Cost associated to travel mode | Metric | Trip |
| DIST | Travel distance | Metric | Trip |
| FREQ | Frequency of use of travel mode [times/week] | Metric | Individual |
| FUT_COV_ | Opinion on the level of future potential diffusion of SARS-CoV-2 [6-point scale, ranging from “No longer present” to ”Very diffused“] | Categorical | Individual |
| GENDER_F | Female | Dummy | Individual |
| HH_BIKE | Number of bikes | Metric | Household |
| HH_CARLIC | Number of driving licenses related to number of cars | Metric | Household |
| INCOME | Income [1000€] | Metric | Individual |
| IVT | In-vehicle travel time | Metric | Trip |
| MI_B (car pooling) | Opinion on mandatory use of face mask and glove [5-point scale, ranging from “Not at all important” to “Very important”] |
Categorical | Trip |
| MI_B (car sharing) | Opinion on daily sanitization of vehicles [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| MI_B (public transport) | Opinion on daily sanitization of vehicles and adequate ventilation system [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| MI_C (car sharing) | Opinion on the presence of sanitizing gel onboard vehicles [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| MI_C (public transport) | Opinion on automatic access control via web, phone or app booking system [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| MI_D (car sharing) | Opinion on mandatory safety distance onboard vehicles [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| MI_D (public transport) | Opinion on mandatory use of face mask and glove; safety distances onboard vehicles [5-point scale, ranging from “Not at all important” to “Very important”] | Categorical | Trip |
| OCC_P | Occupation [professor] | Dummy | Individual |
| PAST_BIKE | Past use of bike for the trip | Dummy | Trip |
| PAST_CAR | Past use of private car for the trip | Dummy | Trip |
| PAST_PT | Past use of public transportation for the trip | Dummy | Trip |
| PER_COV_ | Level of concern about the current pandemic [5-point scale, ranging from “Very worried” to “Very relaxed”] | Categorical | Individual |
| SAF_ | Perceived level of health risk of travelling on transportation means [5-point scale, ranging from “Not at all safe” to “Very safe”] | Categorical | Individual |
| WALK_TIME | Walking time | Metric | Trip |