INTELLIGENT SPEED ADAPTATION IN SWEDEN - IMPORTANT EVALUATION ISSUES IN LARGE-SCALE TESTING

The Swedish National Road Administration (SNRA) has decided to run a large-scale trial involving Intelligent Speed Adaptation (ISA) in urban areas. Several thousand cars will be equipped with smart, supporting, voluntary systems to help motorists keep to the speed limits. Borlange, Lidkoping, Lund and Umea are the trial cities and are responsible for running the trial in the individual areas. Four systems will be tested: Informative, Informative with display, Actively supporting ISA systems and ISA systems for quality assurance. The project will be evaluated from three angles; acceptance, functionality and effects. The main issues in the evaluation will be to confirm positive safety effects from earlier studies and to identify possible negative safety effects that have to be tackled. (A*) For the covering abstract see ITRD E110327.