Each year on the roads of this country upwards of 2,000 people are killed and many tens of thousands more are injured in road crashes. The perception of danger is one of the most common reasons people have for not riding a bicycle. Why do we, as a society, tolerate this level of carnage? What can be done? In the studio to help answer these questions is Dr Robert Davis, author of the acclaimed book Death on the Streets and currently serving as Chair of the Road Danger Reduction Forum. Some more reading.