Table 2 Items/indicators for service attribute perception

Safety

SafetyWithoutSteward

I feel ________ if there is NO operator/ steward on the automated vehicle. (1 if Extremely Unsafe; 2 if Unsafe; 3 if Neutral; 4 if Safe; 5 if Extremely Safe)

Safety_Pedestrian

From the point of view of a pedestrian who wants to cross a road without using pedestrian crossing facilities, I feel _______ when I see an oncoming automated vehicle on public road. (1 if Extremely Unsafe; 2 if Unsafe; 3 if Neutral; 4 if Safe; 5 if Extremely Safe)

Safety_CarDriver

From the point of view of a non-automated car driver, I feel _______ when I encounter an automated vehicle on public road. (1 if Extremely Unsafe; 2 if Unsafe; 3 if Neutral; 4 if Safe; 5 if Extremely Safe)

Cybersecurity

Cybersecurity_Hacked

I feel that the chance of its automated driving system being hacked would be: (1 if Extremely Low; 2 if Low; 3 if Neutral; 4 if High; 5 if Extremely High)

Cybersecurity_GPS

I feel that the chance of its GPS data being shared with unauthorised parties would be: (1 if Extremely Low; 2 if Low; 3 if Neutral; 4 if High; 5 if Extremely High)

Ride Comfort

RideComfort_Tech

I feel that the level of on-board comfort due to driving speed and driving patterns of the automated vehicle would be: (1 if Extremely Uncomfortable; 2 if Uncomfortable; 3 if Neutral; 4 if Comfortable; 5 if Extremely Comfortable)

RideComfort_Facilities

I feel that the level of on-board comfort due to the facilities inside the automated vehicle would be: (1 if Extremely Uncomfortable; 2 if Uncomfortable; 3 if Neutral; 4 if Comfortable; 5 if Extremely Comfortable)

OverallRideComfort

I feel that an automated vehicle ride would be: (1 if Extremely Unpleasant Ride; 2 if Unpleasant Ride; 3 if Neutral; 4 if Pleasant Ride; 5 if Extremely Pleasant Ride)

Travel Time

Time_RegularPublicBus

Perception about travel time by automated vehicle in comparison to travel time by regular public bus given same distance and route (1 if Much Longer than by regular public bus; 2 if Longer than by regular public bus; 3 if Same; 4 if Shorter than by regular public bus; 5 if Much Shorter than by regular public bus)

Time_Metro

Perception about travel time by automated vehicle in comparison to travel time by metro given same distance and route (1 if Much Longer than by metro; 2 if Longer than by metro; 3 if Same; 4 if Shorter than by metro; 5 if Much Shorter than by metro)

Time_Train

Perception about travel time by automated vehicle in comparison to travel time by train given same distance and route (1 if Much Longer than by train; 2 if Longer than by train; 3 if Same; 4 if Shorter than by train; 5 if Much Shorter than by train)

Time_Car

Perception about travel time by automated vehicle in comparison to travel time by car given same distance and route (1 if Much Longer than by car; 2 if Longer than by car; 3 if Same; 4 if Shorter than by car; 5 if Much Shorter than by car)

Travel Fare

Fare_RegularPublicBus

Perception about travel fare by automated vehicle in comparison to travel fare by regular public bus given same distance and route (1 if Much More Expensive than by regular public bus; 2 if More Expensive than by regular public bus; 3 if Same; 4 if Cheaper than by regular public bus; 5 if Much Cheaper than by regular public bus)

Fare_Metro

Perception about travel fare by automated vehicle in comparison to travel fare by metro given same distance and route (1 if Much More Expensive than by metro; 2 if More Expensive than by metro; 3 if Same; 4 if Cheaper than by metro; 5 if Much Cheaper than by metro)

Fare_Train

Perception about travel fare by automated vehicle in comparison to travel fare by taking train given same distance and route (1 if Much More Expensive than by taking train; 2 if More Expensive than by taking train; 3 if Same; 4 if Cheaper than by taking train; 5 if Much Cheaper than by taking train)