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Automatic Section Speed Control in Tunnels : Effect on speed and accidents Effect on speed and accidents
Trials with Automatic Section Speed Control – (ASSC) have been carried out in four different tunnels in Norway. The effect on speed has been measured. The reduction is between 3 km/h and 10 km/h. The largest reduction is where the speed is highest before the installation of speed cameras. Accident reduction is between 11% and 20% and is calculated using a new alternative to the power model.