What do zigzag lines at a pedestrian crossing mean?

Explanation: The approach to and exit from a pedestrian crossing is marked with zigzag lines. You mustn't park in this area, as it would block the view for pedestrians and traffic. Overtaking the leading vehicle on approach to a crossing is also illegal.

Category: Band 2 traffic signs and signals

References: The Official DVSA Guide to Driving: Section 7, Highway Code: Rule 240, Know Your Traffic Signs: Page 122