Since the Abbey Road photo was taken, zigzag lines at the kerb and in the centre of the road have been added to all zebra crossings.
Transport Scotland and the Scottish Roads Research Board, supported by Jacobs and The University of Edinburgh, are undertaking research into how disabled people and older people in Scotland view and experience zebra crossings.
The first zebra crossing was installed in , in 1951 to enhance pedestrian safety at new and already existing crossing points.
Zig-zag marks shorter than 2 m should be used only to indicate a controlled area of fewer than eight marks.
More vehicles should be accommodated if there are large numbers turning.
The reason for this option is to recognize the importance of the animal for the region's farming.