It's a congestion charging-fan's greatest dream - evidence that road tolls can lead to less traffic. Atleast in theory.
A Dutch researcher says a variable toll charge, with different rates at different departure times, reduces traffic jams.
Even small toll charges can alter greatly a commuter's total travel time.
Dusica Joksimovic developed a simulation model that can help policy makers to estimate the consequences of various toll charges.
The model predicts, where, when and how much toll must be charged for the desired policy outcomes, such as reducing the total travel time of all travellers or maximising the toll revenues.
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