Research and analysis

Longer semi-trailer trial evaluation: annual report 2019

Summary of research and findings from year 8 of the longer semi-trailer (LST) trial evaluation.

From:
Department for Transport
Published
9 November 2020

Applies to England, Scotland and Wales

Documents

GB Longer Semi-Trailer trial: 2019 Annual Report summary

HTML

Introducing and managing LSTs: an industry-led summary of good practice

HTML

Evaluation of the Longer Semi-Trailer Trial: Annual Report 2019

Ref: Issue 1-2

PDF, 2.05 MB, 127 pages

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Details

The Department for Transport (DfT) began a trial of longer semi-trailers (LSTs) for articulated goods vehicles in January 2012 on roads in Great Britain.

The trial aims to see if using longer semi-trailers achieves the anticipated environmental and economic benefits while assessing their impact on road safety.

Published here are:

  • the full 2019 annual report
  • a summary of findings up to and including the eighth year of the trial
  • a summary of good operational practice to be used by LST operators and any other relevant industry representatives or regulatory bodies

There remain some unallocated LSTs available. Should operators wish to join the trial or increase the numbers they are already operating, please submit applications to freight@dft.gov.uk.

The DfT will no longer cap allocations at a maximum of 50 LSTs but will continue to limit the numbers to a maximum of 20% of your current fleet.

Published 9 November 2020

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