But what about distance? Imagine a cyclist travelling down a hill at 50km/h and running straight over some crossroads in a residential neighbourhood. Assuming a line of sight to the hill, a human can probably recognise that that fast moving object (that may or may not run over the cross-roads) is a bicycle with a cyclist on it quicker than a computer can do the same.

This of course, assumes the driver has good vision or is wearing any prescription they might be required to do so by law.