Evaluation of Traffic Collision Risk and CO₂ Emission Reduction under Providing Accelerator-off Indication to Multiple Vehicles

抄録

Reduction of CO₂ emissions from vehicles becomes an urgent social issue for preventing global warming. In this study, the information provision system to provide accelerator-off indication to a driver is constructed for reducing the amount of CO₂ emissions from vehicles approaching a signalized intersection, which can be applied to multiple car-following situations. A driver could pass through the upcoming intersection at green signal or shorten the idling time during red by following the information. The information system is evaluated by driving experiments with two participants and a recorded driver by a driving simulator. From results of the experiments, although the information provision only to the lead vehicle raiseda risk of traffic collision, it was clarified the information provision to the following vehicle contributed to reduce the collision risk even under multiple car-following situations. Furthermore, the information provision reduced the amount of CO₂ emissions effectively from the last following vehicle.