Saving Fuel and Environment with Intelligent Speed Adaptation

This paper will present the implementation strategy for Intelligent Speed Adaptation (ISA) in Stockholm, and especially our goals and methods for combining ISA with functions for fuel saving and less emissions. As a basis for further ISA implementation, the City of Stockholm has tested active ISA in 20 vehicles. Speeding was reduced with 30% and the acceptance was good. After the trials, the City Council of Stockholm has decided that the goal is to have ISA in all vehicles driving for the City of Stockholm before 2010. An implementation strategy has been accepted which includes an ambition to exploit the possibilities of saving fuel and environment with ISA and also to use this as an argument for implementing ISA. A new concept for how to combine ISA with support for economical driving will be developed and tested in Stockholm. This concept is based on saving fuel by reducing speeding and improving economical driving. Speeding is reduced by the ISA-component and more economical driving will be achieved by combining support before driving (education, incentives), with support during driving (from vehicle computer) and support after driving (statistics, feed-back). “Ecodriving” is not a new concept - the new part is that we can use the ISA-equipment and the ISA-organization also for ecodriving. This will make it easier and cheaper to implement both ISA and economical driving. The goal is to save at least 10 percent fuel and the corresponding amount of CO2.