Advanced driver assistance systems such as adaptive cruise control (ACC) and lane keeping system (LKS) potentially contribute to reducing crash rates and traffic congestion, according to new report.

The study, published by SWOV, the Institute for Road Safety Research in the Netherlands, examined the factors that influence changes in the longitudinal vehicle control when driving with ACC and LKS.

The findings revealed that, overall, drivers were less likely to speed and were also less likely to have a time gap shorter than one second in the experimental condition with the ACC and the LKS than in the baseline condition in manual driving.

SWOV said although further studies are needed, the results were useful to the design of automated vehicles that prevent speeding and short time gaps, and to the implementation of traffic simulations that evaluate the impact of ACC and LKS on crash rates and traffic congestion according to realistic on-road data.