The paper describes an Intelligent Speed Adaptation (ISA) project in Denmark based on Pay As You Drive principles, which means that the ISA equipment both gives a warning when the driver is speeding but also gives penalty points which reduce a promised bonus at 30 % on the insurance rate. In the project the authors have developed an On Board Unit (OBU) for ISA with mobile phone (GPRS) connection to a web server, and with an advanced map matching program, and air based map update function. They have developed a speed map for 22,000 km roads, including a web based maintaining tool. The project will proceed in a three year test period involving 300 car drivers as participants in the project, and some very primary results from the first 3 months driving are presented. The authors have problems recruiting participants in the project, until now only 90 have signed a contract to have an OBU installed.
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