I'd agree with that. Even something to "break up" the view and add ambiguity might make people stop... the road equivalent of a scarecrow, perhaps.. some "scare

I'd agree with that. Even something to "break up" the view and add ambiguity might make people stop... the road equivalent of a scarecrow, perhaps.. some "scarebikes"? :- (I've seen a lot of cardboard cutouts of police officers at various petrol stations in recent years. They do make you think twice when you see them out of the corner of your eye.)