This is an incredibly important point (my emphasis):
Dr Robert Davis of the Road Danger Reduction Forum came on the show a couple of week’s ago. One of his arguments is that public policy is heavily skewed by a form of ambulance-chasing, i.e. only taking action on road danger when there is evidence in the form of collisions causing death and serious injuries. By only responding to data on crashes, Dr Davis says we ignore the adaptive behaviour that is going on among vulnerable road users like cyclists and pedestrians. We are presented with the apparent paradox that a road can be dangerous for cyclists yet be declared ‘safe’ since there have been no crashes involving cyclists. This is because cyclists have simply decided not to ride on that road. via Why Boris Johnson has got it wrong on Blackfriars Bridge | The Bike Show – a cycling radio show and podcast from Resonance FM.
We see this all the time.
We could also assume that the, very rare, accidents between cyclists and pedestrians are due to the cyclists either being driven off the roads or provided with completely inadequate provision (for example sharing a narrow path with lots of pedestrians and dogs is very difficult as a cyclist).