THE CAR MODEL - THE DUTCH METHOD TO DETERMINE CITY STREET AIR-QUALITY

The CAR model (Calculation of Air pollution from Road traffic) is a si mple parameterized model for the determination of air quality alongsid e roads (including street canyons) in cities. The calibration of the m odel, using data from the Dutch National Air Quality Monitoring Networ k, is described and a limited validation of the model is given. The mo del supports the implementation of air quality decrees under the Air P ollution Act by provincial and municipal authorities. Various applicat ions of the model, including a scenario analysis for city street air q uality in the Netherlands in the period 1989-2010, are presented.