Guidance

Road congestion and travel times statistics guidance

From:
Department for Transport
Part of:
Road network and traffic
Published:
11 August 2016
Last updated:
18 May 2017, see all updates

Guide to road congestion and travel time statistics, their source documents, notes and definitions plus supporting technical documents.

Documents

An introduction to DfT congestion statistics

PDF, 164KB, 8 pages

Percentage of data imputed for travel time statistics on the local 'A' road network, by month

ODS, 5.31KB

This file is in an OpenDocument format

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Methodology of congestion (average speed) statistics calculation on local ‘A’ roads

PDF, 3.81MB, 15 pages

Percentage of congestion statistics on local ‘A’ roads data imputed for England, by month

MS Excel Spreadsheet, 44KB

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Percentage of congestion statistics on local ‘A’ roads data imputed for each local authority in England, by annual average

MS Excel Spreadsheet, 58KB

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Percentage of congestion statistics on local ‘A’ roads data imputed for each local authority in England, by academic year

MS Excel Spreadsheet, 126KB

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Percentage difference between provisional and final congestion statistics on local ‘A’ roads for each local authority in England, by annual average

MS Excel Spreadsheet, 70KB

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Percentage of data imputed for travel time statistics on the Strategic Road Network, by month

ODS, 6.56KB

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Methodology for calculation of reliability statistics on Highways Agency roads

PDF, 499KB, 15 pages

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Percentage of reliability statistics on Highways Agency roads data imputed for England, by month

ODS, 7.32KB

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Details

Road congestion and travel time statistics notes and definitions and other source documents.

Document information

Published: 11 August 2016

Updated: 18 May 2017

+ full page history

  1. Local roads and SRN monthly data documents updated.
  2. SRN, Highways England and local speed data documents updated.
  3. Local roads and SRN monthly data documents updated.
  4. Local roads and SRN monthly data documents updated.
  5. First published.

From: Department for Transport

Part of: Road network and traffic