IMPACT ASSESSMENT OF ADAPTIVE CRUISE CONTROL (ACC) AND FORWARD COLLISION WARNING (FCW) WITHIN A FIELD OPERATIONAL TEST IN EUROPE

摘要

The euroFOT project is the first large-scale Field Operational Test (FOT) of multiple Advanced DriverAssistance Systems (ADAS) in Europe. It will evaluate the impacts of ADAS on safety, traffic efficiency,environment, driver behaviour and user-acceptance in real life situations with normal drivers,by means of collected data from instrumented vehicles. By offering valuable information for the shortandlong-term impact of ADAS the euroFOT project aims to encourage the deployment of ADAS.Altogether, about 1000 vehicles from different manufacturers and with different advanced driver assistancesystems will take part in the FOT. The euroFOT fleet is coordinated by five Vehicle ManagementCenters (VMC). The Institute of Automotive Engineering (ika) of the RWTH Aachen Universityanalysed the effects of ACC usage in combination with FCW under normal driving conditions of 100passenger cars. The results of the data analysis show positive effects on traffic safety and fuel consumption.In terms of traffic safety a reduction in number of incidents, harsh braking and critical timeheadwayswere determined. These reductions can be attributed to changed distance behaviour of thedrivers. Moreover the analysis shows that the average time-headway was increased at about 16%,which is a further indication that ACC has a positive impact on traffic safety. In addition to the usagerate of 50% the analysis of acceptance rating revealed a positive perception of the ACC and FCW.Furthermore, a reduction in fuel consumption of 2.8% was observed which results in less CO_2 emissions.Besides the analysis of the collected data, the complete process chain from the data collection tothe analysis was defined and conducted at the ika.