The idea is that data from existing sensors in vehicles about the road condition (ESP, ABS) and other useful information (temperature, windshield wipers ) is transferred from vehicles and then combined with weather data, resulting in an improved and increased information about the road conditions. SRIS covers a spatially larger area compared with the fixed positions of the road weather stations. The SRIS also gives a denser temporal resolution. Field-tests have been performed during the winter 2007/2008 with 100cars and 80 weather stations in west of Sweden. The conclusion is that SRIS is technically possible to use. It also has a high national economic potential since SRIS is commercially interesting to develop and use. If a decision is taken today, it is technically possible to have a Swedish national system in two years. Within four years it would be possible to have exported SRIS to several European countries.
Abstract