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Enabling software

Star Rating Demonstrator

The iRAP Star Rating Demonstrator is a tool within ViDA that enables Star Ratings and Star Rating for Designs (SR4D) at individual locations.

With the Demonstrator, it is possible to quickly produce a Star Rating and test the effect that changes to road attributes will have in risk and Star Ratings. The Demonstrator is also a valuable teaching and learning tool, enabling those learning about Star Ratings (from politicians to University students) to gain an intuitive insight into road infrastructure risk management. The Demonstrator was developed with the ChinaRAP team.

To access the Demonstrator, visit

Rapid ratings


Introduction to iRAP Star Rating Demonstrator tool

Using the Star Rating Demonstrator

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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

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