DoT- Road congestion and travel times statistics guidance
Posted: Thu Nov 30, 2017 12:31 pm
From: Department for Transport
Part of: Road network and traffic
Published:11 August 2016
Last updated: 30 November 2017
"Guide to road congestion and travel time statistics, their source documents, notes and definitions plus supporting technical documents."
https://www.gov.uk/government/publicati ... s-guidance
WB