Vehicle speed measurement (formerly TA 22/81)
DMRB: Road Lighting CA 185
Document Status
Current
Supplement
Civil & Structural Supplement
Series
DMRB: Road Lighting
Abstract
Provides requirements for measuring vehicle speeds and the 85th percentile speed on existing all-purpose trunk roads. Looks at spot speed and journey speeds, speed limits, traffic signal installations, other scheme types, free flow conditions, recording minimum vehicle numbers, speed measurement frequency, timing and measurement methods.
History
Road Layout. Appraisal. Supersedes TA 22/81 Assessment and preparation of road schemes. Assessment of road schemes. Vehicle speed measurement on all purpose roads (HA, 1981). Design manual for roads and bridges (DMRB).
Subjects
- Roads
- Civil engineering, infrastructure and public utilities
- Transport facilities
Publisher History
Highways England is now known as National Highways and was responsible for the operation, maintenance and improvement of England's motorways and major A roads. It was an executive non-departmental public body, sponsored by the Department for Transport and was formerly known as Highways Agency.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
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