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Level crossing signals are electronic warning devices for road vehicles at railroad level crossings. Level crossings can be operated in various ways. In some countries such as the UK, the warning devices are more often than not activated by remote control, I.e. an operator pressing buttons. However, the majority of countries have automated systems.
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To warn people at a level crossing that a train is coming. An indicator, located 0.4 kilometres (1 ⁄ 4 mile) from the crossing, marks the location where the horn must be sounded when the train is travelling faster than 70 km/h (43 mph). When the train is travelling at 70 km/h or less, this signal must be sounded for twenty seconds prior to ...
A level crossing is an intersection where a railway line crosses a road, path, or (in rare situations) airport runway, at the same level, [1] as opposed to the railway line or the road etc. crossing over or under using an overpass or tunnel.
Some level crossings that are located close to intersections with traffic lights program the signals with a preemption sequence so when the approaching train trips the track circuit, it not only activates the crossing signals, but also changes the traffic lights facing the crossing to green, to clear any traffic that may be queued on the ...
After the Ufton Nervet rail crash, there have been increased efforts to review the placing of level crossings and to eliminate them where this is practicable.In the UK it has also been suggested that cameras similar to the type used to detect drivers who run traffic lights be deployed at level crossings, and that penalties for ignoring signals should be much more severe.
These digital signals can control all aspects of the model trains and accessories, including signals, turnouts, lighting, level crossings, cranes, turntables, etc. Constant power is supplied to the track and digital signals are sent which require electronic decoders to be fitted to locomotives and other devices to interpret the commands.
Canadian Rule Books contain all hand signals, voice signals and flag signals as well as fixed trackside signal indications necessary for operation. These rule books specify various methods of operation in both signaled territory and dark territory , where manual methods of granting track authority must be used.