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What Features Should You Look For In A Detectable Warning Surface?

Are you starting a new construction project or a retrofitting project? It’s time for you to select the appropriate surface applied detectable warning system. But, before installing them, contractors have to make sure they are compliant with the national, regional, and provincial code standards. The detectable warning system makes it easy for pedestrians to navigate their surroundings.  



The tactile walking surface indicators must be lightweight and easy to install and must last for long. Contractors have to make sure the tactile indicators are made from high-quality materials that comply with code requirements. 

Features contractors must look for before reinstalling detectable warning surfaces.

Location Requirements

Contractors must install tactile warning surface indicators on rail, transit platform edges, curb ramps, reflecting pools, and hazardous crosswalks. Installing tactile indicators in the facility will help contractors to reduce the chances of accidents.

Spacing Requirements

The raised domes on the warning surfaces must have a minimum of a center to center spacing of 1.6 inches and not more than a maximum of 2.4 inches. The spacing between each raised dome must be a minimum of 0.65 inches.


Size Requirements

Contractors have to make sure the tactile indicators consist of a series of domes over a radical, square, or rectangular grid that complies with the code requirements. The tactile surface must be a minimum of 24 inches long in the direction of travel and must extend to its entire width.

Code Requirements

To make the facility accessible for sight-impaired customers, contractors must install code-compliant tactile warning surface indicators. The TWSI must comply with required national, regional, and provincial standards and must have a clear color contrast with the surroundings.

Types of tactile warning surface products

  • Cast in place
  • Cast in place replicable
  • Surface applied

 

 

 

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