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We have updated the ViDA user guide and the Star Rating for Designs user guide, and have made them available in Spanish as well as English.

ViDA User Guide – This guide introduces ViDA, iRAP’s online analysis and reporting tool, and provides instructions for accessing ViDA, creating a ViDA account and accessing Star Ratings and Safer Road Investment Plan (SRIP) results.

This guide has been recently updated in January 2021 (Version 2.1) to include:

  • New Raw Star Rating Maps and latest images to reflect recent ViDA updates.
  • New sections on how to use the Star Rating Demonstrator and the ViDA Forum.

Star Rating for Designs (SR4D) User Guide – This guide provides instructions on how to use Star Rating for Designs (SR4D),a web application in ViDA which can be used to code existing roads and road designs.

See more about our specifications and guides here.

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The International Road Assessment Programme (iRAP) is a Registered Charity with UN ECOSOC Consultative Status.
iRAP is registered in England and Wales under company number 05476000
Charity number 1140357

Registered office: 60 Trafalgar Square, London, WC2N 5DS
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