Intelligent Speed Adaptation : results of the Dutch ISA Tilburg trial : summary

From October 1999 until October 2000, the AVV conducted a trial involving Intelligent Speed Adaptation (ISA) for 20 passenger cars and one passenger bus. The trial took place in an urban area of the city of Tilburg and three speed limits were used 30, 50 and 80 km/h. When the vehicle exceeds the maximum speed limit for that area, the speed of the vehicle is ajusted automatically. The primary goal of this study was to examine wheter ISA is a realistic option as an instrument for speed control, both from a technical-operational and from a social point of view. This summary provides information about the research design, the acceptance of ISA, as well as changes in actual driving behaviour.