... times before. The term "trap" refers to the function of a set of points, a term used by the signalling and operating departments. In bullhead days the physical object was generally known in the Permanent Way departments as "catch points" and is shown as such on the manufacturing drawings. See for example the whole chapter on "catch points" in David Smith's GWR book: cvr_track_200px.jpg http://gwsg.org.uk/GWSG_Publications.html Templot is about track, and defaults to bullhead, so that is the term we use: 2_260347_230000000.png which shortens a turnout template to contain only the switch. The "trap points" function may be implemented as a set of catch points, or may be a full turnout or slip leading to a spur or sand drag. It's interesting to refer to the PWI handbooks "British Railway Track": BRT3 (1964 edition) refers to the physical object as "catch points" and "catch roads" throughout. See p.154, and the same wording in earlier editions. So clearly it was not only GWR practice at ...