Samenvatting
According to the Forecasting Air pollution by Car Traffic Simulation (FACTS) car computer model the influence of pricing measures on car ownership and use depends on how price increases are introduced. The macro-economic scenario is also seen to influence the effect of price measures. Finally, the effect of a measure changes over time. If two pricing measures are combined, the overall effect is in 30% of the cases seen to differ from the `expected' effect (if measures are independent). Sometimes, combined pricing measures can even counteract each other causing less effect than only one pricing measure.