A quick introduction to Danish signalling

For links to descriptions of signalling systems elsewhere, look at http://trackmap.net/signal.

Contents

• Concepts and terminology
• Platform exit signals
• Main signals
• Shunting signals
• Left-track signals
• Signals for level crossings with roads
• S-train cab signalling
• Main line cab signalling (very limited information is available due to my own low knowledge level in this field).

Visual identification guide

Type codes	Picture	Look	Description
PU		Rectangular (or somewhat slim-line) back plates with the top right corner cut off quasicircularly.	Found at platform points, shows either main signal or shunting signal aspects. The section on platform exit signals says which's when.
TU		Strictly rectangular back plates.	Found at platform points these signals are now mostly extinct. Their aspects are described in the section on main signals.
SU, U, AM		Tall back plates with semicircular top and bottom.	Main signals
I, SI		Ditto, but with a yellow top lantern. Other combinations than the shown samples exist.	Station entry signals
(no code)		Tall back plates with semicircular bottom and rectangular top.	Distant signals
(no code)		Mastless »dwarf signals« with the top right corner cut off quasicurcularly, like PUs.	Shunting signals
VM, VI, VU		Signals looking like PUs or dwarf signals.	Left track signals. As far as I'm informed they are a Danish specialty.
(no code)		Hexagonal or diamond back plates.	Signals for level crossings with roads