The tension between autonomous cars' impacts on intersection level-of-service and their occupants' use of travel time for leisurely or economically-productive activities

摘要: Systems that enable high levels of vehicle-automation are now beginning to enter the commercial marketplace. Road vehicles capable operating independently real-time human control under an increasing set circumstances will likely become more widely available in near future. Such expected bring a variety benefits. Two such anticipated advantages (relative human-driver vehicle control) said be increased road network capacity and freeing up driver-occupant’s time engage their choice leisurely or economically-productive (non-driving) tasks. In this study authors investigate implications for intersection level-of-service providing occupants automated (without control), autonomously-operating vehicle-to-X communication) cars with ride quality is equivalent (in terms maximum rates longitudinal lateral acceleration) two types rail systems: [urban] light transit [inter-urban] high-speed rail. The literature suggests car passengers start experiencing discomfort at lower acceleration than drivers; it therefore plausible may wish instruct maneuver way provides them greater comfort if vehicle-control algorithm simply mimicked human-driving-operation. On basis traffic microsimulation analysis, found restricting dynamics autonomous acceleration/deceleration characteristics both systems leads reductions signalized intersection’s vehicle-processing increases delay. impacts were larger when constraining cars’ restrictive profile This paper concludes brief discussion research needs advance line inquiry.