Guidance

Road condition statistics: Technical note

Guide to road condition statistics and technical information.

• From: Department for Transport
• Published: 17 December 2024
• Last updated: 21 January 2026
  Show all updates

  1. 21 January 2026

     Technical note for Road conditions in England to March 2025 updated.

  2. 17 December 2024

     First published.

Applies to England

Documents

Section 1: introduction and reporting of road condition

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Section 2: measuring surface condition using automated visual methods

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Section 3: measuring surface condition using manual visual surveys

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Section 4: measuring skid resistance

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Section 5: measuring road structural condition

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Section 6: glossary of technical terms

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Details

Guide to road condition statistics and technical information.