1 Scope
This British Standard specifies the symbols to be used on railway signalling plans
but does not provide guidance on their application.
This British Standard does not apply to tramways operated on line of sight or using
highway signals. It does not include proprietary systems and specialized applications.
NOTE 1 The symbols in this British Standard provide for apparatus in general use. They have been designed so that they can be combined together where one does not represent the complete device. In this British Standard, where certain elements are added for illustrative purposes, they are shown by dashed lines. If additional information is required to support the symbol, a “#” may be used to reference a note on the plan.
NOTE 2 The symbols are shown relative to the driver’s point of view; on actual plans the symbols are rotated.
NOTE 3 The size of symbols are drawn in proportion but are not necessarily relative to one another nor give specific size to use.