article_snippet.sent: drivers call it the Avis Driving Ratio (ADR).
article_snippet.sent: In order to create the Avis Driving Ratio (ADR), Avis recruited experts from across quantum physics, F1 track design, high performance cars and even a world renowned British designer of rollercoasters. '
article_snippet.sent: In creating the Avis Driving Ratio (ADR) we have calculated the optimum balance between those components, to scientifically establish the world's best driving roads.'
article_snippet.sent: the Avis Driving Ratio (ADR) has been designed to  end longstanding debate amongst car enthusiasts.
article_snippet.sent: To inform and develop the ADR Dr Hadley used the geometry of the road and driving style together with the average acceleration, lateral acceleration, braking times and distances of a range of the cars on offer in the Avis Prestige fleet: