PAGE SUMMARY – motorcycles are small and easily hidden… the motorcycle can be concealed by the vehicle itself or by objects outside the car… the A pillars either side of the windscreen have steadily got thicker to provide better crash protection… a ‘framing effect’ means we avoid looking at the edges of the windscreen… when two vehicles are moving towards an intersection and due to arrive at the same time, the ‘bearing’ between the two vehicles stays constant… if one vehicle is hidden when the bearing remains constant, it will remain hidden… even though the rider can see the vehicle, the driver may not see the bike…

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Photo credit Paul Townsend https://www.flickr.com/photos/brizzlebornandbred/20001313491