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Turnouts facing and trailing. Note that this diagram is for left-hand traffic; for right-hand traffic, "F" and "T" would be swapped. Facing or trailing are railway turnouts (or 'points' in the UK) in respect to whether they are divergent or convergent. When a train traverses a turnout in a facing direction, it may diverge onto either of the two ...
Double trap points are a full turnout, leading to two tongues. Usually the tongue nearer the main line is longer than the other. Trap points with a crossing are double trap points where the tongues of rail are longer, so that the trap point rail nearest the main line continues over the siding rail with a common crossing or frog.
This is a route-map template for a railway in country. For a key to symbols, see {{ railway line legend }} . For information on using this template, see Template:Routemap .
Double junction, or level junction (left hand running). A double junction is a railway junction where a double-track railway splits into two double track lines. Usually, one line is the main line and carries traffic through the junction at normal speed, while the other track is a branch line that carries traffic through the junction at reduced speed.
A time–distance diagram is a chart with two axes: one for time, the other for location. The units on either axis depend on the type of project: time can be expressed in minutes (for overnight construction of railroad modification projects such as the installation of switches) or years (for large construction projects); the location can be (kilo)meters, or other distinct units (such as ...
This is a route-map template for a railway in {{{1}}}. For a key to symbols, see {{ railway line legend }} . For information on using this template, see Template:Routemap .
To change this template's initial visibility, the |state= parameter may be used: {{Railway track layouts | state = collapsed}} will show the template collapsed, i.e. hidden apart from its title bar. {{Railway track layouts | state = expanded}} will show the template expanded, i.e. fully visible.
RailTopoModel is a systemic data model for describing the topology-based railway infrastructure as needed by various applications. The RailTopoModel has been initially developed under patronage of the International Union of Railways (UIC) and was released as International Railway Standard ( IRS ) 30100 in April 2016. [ 1 ]