Guidance

Road congestion and travel times statistics guidance

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

Documents

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

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

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

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

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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

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

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Methodology for calculation of reliability statistics on Highways Agency roads

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

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Detail

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