What does DETR compliant mean?
DETR or Department of Transport
DETR is the Department of the Environment, Transport and Regions, they oversee the regulations that go into anything that affects travel and transport within the UK. It has since been replaced by the Ministry of Housing, Communities & Local Government, the Department for Environment, Food & Rural Affairs, and the Department for Transport. DETR is still used in common parlance when referencing tactile indicators, although this reference now refers to the Department for Transport. Within their remit is the guidance surrounding tactile indicator usage in various scenarios such as:
- Controlled crossings
- Uncontrolled crossings
- Train station platforms
- Light Rapid Transport or LRT platforms
- Level crossings
- Bicycle lanes
- General use in public locations
Where can I find the guidance for these scenarios?
The Department for Transport has a comprehensive guide to their standards here – https://assets.publishing.service.gov.uk/media/61df0c91e90e07037794fe90/guidance-on-the-use-of-tactile-paving-surfaces.pdf
It covers all the relevant information for the scenarios listed and how tactile indicators should be properly implemented to ensure a coherent, consistent experience for the blind and visually impaired. It’s important to note that the guidance refers to more traditional tactile indicators such as blister paving and corduroy paving, and not tactile studs or strips.
How does the DETR or Department of Transport guidance apply to tactile studs and strips?
Although not directly named within the guidance, the guidelines still apply to tactile studs and strips as they seek to replicate the same tactile feedback that blister paving and corduroy paving relay. Tactile indicators like tactile studs and tactile strips are much more versatile in their use, but when applied with the same intention it’s important that they replicate the same sensation and messaging exactly, to remain coherent.
What is taken from the guidance for tactile studs and strips?
The most important thing that’s taken from the DETR or Department of Transport guidance are the stated measurements of the tactile indicators of each surface. These measurements then translate into the individual components which are tactile studs and tactile strips.
Blister Paving:
The blisters are 5mm tall and 25mm in diameter.
Corduroy Paving:
The strips or bars are 6mm tall, 20mm wide and 400mm in length.
The studs on this site which state ‘DETR compliant’ follow these measurements and are directly in line with these measurements and the guidance.