帰属:Traffic signs are Crown copyright. You may reproduce traffic signs free of charge and without having to seek permission, but you must reproduce them accurately and not in a misleading context (e.g. not on roadside billboards where they could mislead drivers). (ref [1])
== {{int:filedesc}} == {{Information |Description={{en|1=UK traffic sign: Length of road where two cameras are used to measure the average speed of a vehicle between two points (TSRGDNO 878.1) }} |Source=[http://www.dft.gov.uk/trafficsignsimages/index.php