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Publication of the Traffic Signs Manual Chapter 8 Part 3

  • Tuesday March 3, 2020

The DfT has published the revised Part 3 Chapter 8 containing requirements and advice for those designing temporary traffic management. This revision includes changes, based on feedback from industry, to clarify the design requirements to maintain safety for both road workers and road users and also to expand on the recommended specifications for signs and equipment. It also updates the guidance on speed limits, diversions, sign clutter and length and spacings to reflect current national best practice.

Paragraph U2.7.5. mentions that

“practitioners and employers are encouraged to consider relevant professional certificates, diplomas, or third party accreditation e.g. IHE professional certificates/diplomas. These provide a benchmarked and transferrable assessment of competence. Care should be taken not to require any qualification etc which is solely based on training courses; to be suitable any qualification must enable existing competencies to be assessed. The identification of relevant qualifications would need to take into account the nature of any design work. Using the identified example, the IHE professional certificate/diploma for Traffic Sign Design would likely be suitable for those designing roads or temporary layouts, those designing advance notice signs or event signing. For those involved with the detailed design of the temporary traffic management then the IHE professional certificate/diploma for Temporary Traffic Management may be more relevant.”

Through the Traffic Signs Manual, the Department for Transport provides guidance to traffic authorities and sign designers on good practice in respect of the design and use of traffic signs in order to provide appropriate and adequate information for road users.

  • Chapter 1 provides a general introduction and the legislative background.
  • Chapter 3 covers Regulatory Signs.
  • Chapter 4 covers Warning Signs.
  • Chapter 5 covers Road Markings.
  • Chapter 6 covers Traffic Control.
  • Chapter 7 covers The Design of Traffic Signs.
  • Chapter 8 covers Traffic Safety Measures and Signs for Road Works and Temporary Situations.

Online versions of the new Chapter 8 Part 3 and other Chapters are available on the Departments website at

Printed copies can be purchased at

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