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M20/A20 Congestion Prediction with Post-Brexit Border Delays

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Title: M20/A20 Congestion Prediction with Post-Brexit Border Delays
Authors: Han, K
Graham, D
Ochieng, W
Item Type: Report
Abstract: This research was commissioned by the BBC Inside Out South East program. It aims to quantify the congestion impact on M20/A20 of potential check time increase at Port of Dover and Eurotunnel (in Folkestone) in a post-Brexit scenario. We focus on a 40-mile segment of the M20/A20 motorway between Maidstone and Dover, with local access to Ashford and Folkestone. We consider outbound lorries and passenger vehicles that use the ferry and tunnel to cross the Straight of Dover, as well as traffic with local origins and destinations. Traffic simulations were conducted with assumptions regarding the check times at Dover and Eurotunnel for both current and post-Brexit scenarios. The impact of vehicle queuing at these locations was assessed in terms of queue length, travel time, and disruption to local traffic. The findings show that even one or two minutes of extra check times at the borders are accompanied by a dramatic increase of congestion on the motorways as well as local streets, with queues extending up to 30 miles from Dover/Eurotunnel towards Maidstone and travel time approaching 5 hours in peak times.
Issue Date: 12-Mar-2018
URI: http://hdl.handle.net/10044/1/66015
DOI: https://doi.org/10.25561/66015
Journal / Book Title: M20/A20 Congestion Prediction with Post-Brexit Border Delays
Copyright Statement: © 2018 BBC. Made available by permission of the BBC.
Publication Status: Published
Appears in Collections:Civil and Environmental Engineering
Faculty of Engineering