I think this is caused by drivers who think "cyclist == basically not moving" when in reality cyclists can be doing a pretty good speed, ~20mph isn't rare. Most

I think this is caused by drivers who think "cyclist == basically not moving" when in reality cyclists can be doing a pretty good speed, ~20mph isn't rare. Most drivers haven't ridden a bike since they were kids, though. When I took my driving test in Ireland the examiner marked me down for checking for cyclists and simply said "there won't be any cyclists doing 20kph" - which of course is a very normal cycling speed.