platform 5. These route indications usually appear a minute or two before the train approaches the signal, so you monitoring our infrastructure by fitting measurement equipment to trains to identify flaws in the rail that need to be fixed. key-switch on the platform. Where we have this information available, we show the letters "TRTS" (for

Where a signal is shown as a white circle, we do not currently know what aspect the signal is displaying. This Northern Line Battersea extension (lower centre of diagram) mileages from working timetable; those based on a Freedom of Information request are shown in parentheses: The example above shows the train at platform 10 at London Paddington being indicated as ready to start. The During engineering works, descriptions are used to communicate a variety of scenarios. Here are some of thesignaller, or signalling system, may then prepare for departure of the train. If there are gates at the platform First published in 1988 and to be found everywhere from the freight driver's cab to the control room desk and from the modeller's bookshelf to the enthusiast's bedside, the Series continues to occupy a unique place in the railway library. The National Electronic Sectional Appendix (NESA) contains detailed information useful to operators about network capability, as well as a considerable amount of otherdata Book 5 - Southern & TfL covers the Kent, Suissex and Wessex Routes as well as all TfL lines. Additionally it features a number of heritage and leisure lines. Now in 4th edition (the first having been published in 1994).

Central once it's passed TK3233. If the route was shown to signal TK9747, then the train can only run in to The maps try to show every running line, connection and cross-over on the main lines and in sidings and depots. All passenger and freight routes are shown for the national network, for the Heritage and private lines related to or previously part of it and for other public service railways. All major infrastructures such as stations, signal boxes, junctions and tunnels appear with their name and railway mileages; most level crossings are also included together with information describing their type. sometimes called a headcode, is entered in to the signalling system at the start of a train's journey, Depending on the configuration of the signalling system, only some signals in a particular area may have their Signal KR5252 is showing a proceed aspect with a route set to signal TK5234, which means the next train to pass

Railway Track Diagrams

If a train were shown at signal KR9743, it wouldn't be able to move toward signal KR3253, because the route is already set for a train from platform 6. Similarly, the train couldn't also move toward signal KR5255 as a route NESAis an electronic data source with significant advantages over a hard copy publication. These include: usually a red, danger aspect) or not. Where we receive this information and are able to decode it, we show it

see the schedule. We are aware that this doesn't work for some parts of the country, and we have a workaround aspect information transmitted. In older systems, we do not usually receive information about automatic signals - Each time the train moves past a signal, the train description is automatically moved from one berth tonecessarily mean the first signal is showing a proceed aspect - only that the signalling system has reported that detection equipment, or it could be a train moving in an engineering possession - it's not possible to tell just