Project: Heavy Vehicle Weights and Dimensions - the technical implications of potential changes to the Weights and Dimensions Directive 96/53/EC

Reference: S1005/V8

Last update: 11/05/2011 16:05:07


The aim of this study is to complete the evidence base on the technical implications for the UK of the vehicle configurations being considered in an EC study.


Work will consider two vehicle types. A 16.5m long articulated vehicle with 5 axles and a maximum authorised mass of 44 tonnes, and a 19.4m long articulated vehicle (semi-trailer with 16.6m loading length) that would have a maximum authorised mass of 40 tonnes on 5 axles in international traffic but could, if permitted, have a maximum authorised mass of 44 tonnes on 6 axles in national UK traffic.

This work will focus only on the technical implications with respect to vehicle performance, such as vehicle specification, investigate the effects on safety, the infrastructure, fuel consumption and emissions, rather than the economic impacts with respect to the overall effects arising from freight and logistics operations, freight generation or modal split.


TRL Limited
Crowthorne House, Nine Mile Ride, Wokingham, Berkshire, RG40 3GA
+44 (0)1344 773131

Contract details

Cost to the Department: £29,910.89

Actual start date: 17 January 2011

Actual completion date: 31 March 2011