 An AV was used for interacting with pedestrians but whether the AV stops or not during interactions that was controlled by the experimenter.
<meaning-changed>  An AV was used for interacting with pedestrians but whether the AV stops or not during interactions that was controlled by the experimenter.
 A robotic wheelchair was used as the manual driving vehicle (MV) and AV for interacting with pedestrians but whether the AV stops or not during interactions that was controlled by the experimenter.