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DMRB: Control and Communications Technology TD 121 Ramp metering (formerly IAN 103/08, IAN 121/09). Version 0.0.2
Publication Year
2024
Document Status
Current
Abstract
Details the design requirements for ramp metering.
Document History
Control and communications technology. Design. Supersedes TD 121 Ramp metering (formerly IAN 103/08, IAN 121/09). (HE, 2020). Design manual for roads and bridges (DMRB) Version 0 - Jan 2020 - replaces IAN 103/08 and IAN 121/09. Version 0.0.1 - dated September 2024 - Changes made to core document, England NAA, and Northern Ireland NAA. Version 0.0.2 - dated October 2024 - Republication with no content change to correct index and version numbering.
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
