Austroads, ARRB and TMR have researched and implemented the measurement of vehicle-based congestion costs. The purpose of Project R22 is to produce a methodology for estimating congestion costs associated with road users that include cars, heavy vehicles (HVs), buses, cyclists and pedestrians. Two case studies, one for bus delay cost estimation and one for freeway before-and-after congestion cost comparison will also be conducted to test the methodology.
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