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DMRB: Pavement CD 224 Version 0.1.0 Traffic assessment (formerly CD 224 (rev. 0 inc. HD 24/06)). Version 0.1.0

Publication Year

2025

Document Status

Current

Abstract

Details calculation methods for traffic loading used in road pavement design and covers: commercial vehicle flows in new and existing road schemes.

Document History

Pavement. Design. Supersedes CD 224 Traffic assessment (formerly HD 24/06) (HE, 2020). Revision 0 - March 2020. Replaces HD 24/06. This full document has been re-written to make it compliant with Highways England drafting rules and has also been updated and simplified. Version 0.1.0. Date of publication - September 2025. Incremental changes to requirements, based on 3 years experience of using CD 224 and cyclic review.

Publisher Information

National Highways

National Highways is an executive non-departmental public body, sponsored by the Department for Transport. It has responsibility for operating, maintaining and improving motorways and major A roads in England. Formerly known as Highways England, between 2015-2021 and Highways Agency, between 1994-2015.

National Traffic Operations Centre
3 Ridgeway
Quinton Business Park
Birmingham
NHW
UK

Website: https://www.gov.uk/government/organisations/national-highways
Email: info@nationalhighways.co.uk
Tel: 0300 123 5000