Modelling major traffic incident impacts and estimation of their associated costs

Mohamad Raduan bin Kabit, Phil Charles, Luis Ferreira and Inhi Kim

Transportation Planning and Technology, 2014, vol. 37, issue 4, 373-390

Abstract: Network area-wide impacts due to major traffic incidents can be assessed using a microsimulation approach. A VISSIM microsimulation model for a motorway network has been developed and is used to quantify impacts of a major incident in terms of associated costs. The modelled results reveal that a 65% capacity reduction results in 36% more incident-induced delay when compared with the application of a 50% capacity reduction assumption for a two-hour incident clearance duration that blocked one lane of a two-lane motorway. Additionally, an incident which caused a full blockage incurred 40 times more associated impact costs when compared with a major incident which caused a one lane blockage. A 23% cost saving can be achieved by clearing one lane of a fully blocked two-hour major traffic incident after 90 minutes, while a 37% cost saving can be achieved by clearing all blockages after 90 minutes.

Date: 2014
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DOI: 10.1080/03081060.2014.897130

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