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Service Planning (train)
Encyclopedia
A service planning diagram is a document designed for railroad traffic safety and control.
In railroad history, it quickly made sense to pipe trains one after the other to the same place, first in large passenger stations, then on links between big railroad hubs. The control was done by the train dispatcher
: diagrams were usually drawn once a day, and corrected in real time as the day went by.
The diagram is an overlapping of working timetables. One working timetable
(WTT) is created for each train driver. It is much more detailed than a passenger timetable, showing times when the train is idle or moving towards a depot. Remarkable spots called stations are also pinpointed; they are used as waypoint
s and are not intended for passengers alighting.
In the example on the right end side, four trains (called mission1 to mission4) are sharing the same railroad facilities. You can see that all trains are bound to the same direction, except mission4. Mission4 will meet mission1 and mission2 somewhere between Montfort sur Risle and Appeville about 6 minutes after living Honfleur station.
On busy lines, diagrams are now computerized.
In railroad history, it quickly made sense to pipe trains one after the other to the same place, first in large passenger stations, then on links between big railroad hubs. The control was done by the train dispatcher
Train dispatcher
A train dispatcher is employed by a railroad to direct and facilitate the movement of trains over an assigned territory, which is usually part, or all, of a railroad operating division. In Canada the train dispatcher is known as the rail traffic controller...
: diagrams were usually drawn once a day, and corrected in real time as the day went by.
Working timetable
A Working timetable is a set of schedules that show all the planned train movements in a defined area. The trains included may be passenger trains, freight trains, empty stock movements, or even bus and/or ship connections or replacements....
(WTT) is created for each train driver. It is much more detailed than a passenger timetable, showing times when the train is idle or moving towards a depot. Remarkable spots called stations are also pinpointed; they are used as waypoint
Waypoint
A waypoint is a reference point in physical space used for purposes of navigation.-Concept:Waypoints are sets of coordinates that identify a point in physical space. Coordinates used can vary depending on the application. For terrestrial navigation these coordinates can include longitude and...
s and are not intended for passengers alighting.
In the example on the right end side, four trains (called mission1 to mission4) are sharing the same railroad facilities. You can see that all trains are bound to the same direction, except mission4. Mission4 will meet mission1 and mission2 somewhere between Montfort sur Risle and Appeville about 6 minutes after living Honfleur station.
On busy lines, diagrams are now computerized.
External links
- Fictional sample of a Working Timetable