Table 5 Binary logistic regression model - Utility function coefficients

From: Investigating the preferences for autonomous vehicle use in European road transport: a binary logit model

Model Variable

Attribute

Coefficient (β)

Significance level P[ | Z | >z]

\({\beta }_{0}\)

Intercept

-1.05496

< 2e-16 ***

\({{\rm{AV}}}_{{\rm{knowledge}}3}\)

Knowledge for AVs. (for level 3 - neutral stance of respondent’s knowledge).

0.25007

0.000335 ***

\({{\rm{AV}}}_{{\rm{knowledge}}5}\)

Knowledge for AVs. (for level 5 - excellent respondent’s knowledge).

0.49107

0.000352 ***

\({{\rm{driven}}}_{{AV}}\)

Have you or a relative of yours ever driven a car with automation elements?

0.18627

0.004181 **

\(A{V}_{{safe}{{rthanCV}}_{3}}\)

Driving an Autonomous Vehicle is safer than a conventional one. (for level 3 - neutral stance of respondent)

0.25575

0.003349 **

\(A{V}_{{safe}{{rthanCV}}_{4}}\)

Driving an Autonomous Vehicle is safer than a conventional one. (for level 4 - positive stance of respondent)

0.26511

0.007074 **

\(A{V}_{{safe}{{rthanCV}}_{5}}\)

Driving an Autonomous Vehicle is safer than a conventional one. (for level 5 - total agreement of respondent)

0.83205

2.00e-07 ***

\(A{V}_{{trus}{{thighway}}_{5}}\)

Do you trust an Autonomous Vehicle to drive in a highway? (for level 5 – complete trust of respondent)

0.30402

0.031312 *

\({dataprivac}{y}_{{AVpreference}4}\)

Will data privacy issues affect your preference for an Autonomous Vehicle? (for level 4 – positive stance of respondent)

-0.25540

0.000839 ***

\({dataprivac}{y}_{{AVpreference}5}\)

Will data privacy issues affect your preference for an Autonomous Vehicle? (for level 5 - total agreement of respondent)

-0.55738

6.03e-08 ***

\({autonomou}{s}_{P{T}_{{Europe}}}\)

Did you know that Autonomous Public Transport modes are already/currently being used in European countries?

-0.41177

2.39e-08 ***

\({Gender}\)

What is your Gender?

0.16246

2.13e-06 ***

\({age}3{6}_{45}\)

What is your Age? (for Age between 36-45 years old)

0.24027

0.009928 **

\({incom}{e}_{{gr}5000}\)

What is your monthly income? (for Income greater than 5000€)

0.57734

0.001532 **

\({ag}{e}_{{gr}65}\)

What is your Age? (for Age greater than 65 years old)

-1.74404

0.004263 **

\({Mc}\)

Which is the main transport mode in your everyday life? (for Motorcycle)

0.50421

9.84e-05 ***

\({Entertainment}\)

Which is the main trip purpose of your transportation in everyday life? (for Entertainment)

0.33964

1.10e-06 ***

\({Vehdr}\)

Which is the main transport mode in your everyday life? (for Vehicle as driver)

0.18357

0.005525 **

\({Safety}\)

Preference for an AV when the car industry guarantees the safety of the passengers.

0.75487

< 2e-16 ***

\({Infrastructure}\)

Preference for an AV when there is sufficient road infrastructure.

0.33066

0.000101 ***

\({Framework}\)

Preference for an AV when there is an adequate legislative framework.

0.19776

0.021184 *

  1. Notation: *** (p < 0.001), ** (0.001 < p < 0.01), * (0.01 < p < 0.05)