What do the different train signals mean?
What do the different train signals mean?
The most constant signals and the easiest to understand are single-head block signals. Red means stop; green means proceed, and yellow means caution or approach, usually indicating that the next signal is red.
How do you read Canadian railroad signals?
Signal meanings
- Clear: Green over red over red.
- Clear to Limited: Yellow over flashing green over red.
- Clear to Medium: Yellow over green over red.
- Clear to Slow: Yellow over Yellow over red.
- Clear to Restricting: Yellow over red over flashing red/white.
- Clear to Stop: Yellow over red over red.
What does a red signal mean for a train driver?
Danger
A red aspect (Danger) tells the driver that they must stop at this signal and they must come to a complete stop by the signal. They must not proceed past this signal and if they do, automatic emergency braking is applied and will bring the train to a halt.
What do train horns mean?
The horn’s primary purpose is to alert persons and animals to an oncoming train, especially when approaching a level crossing. They are often extremely loud, allowing them to be heard from a great distance. The horn is also used for acknowledging signals given by railroad employees, such as during switching operations.
What does CP mean in railroad?
Controlled Point (CP), 8, 9.
What does a red light on a railroad mean?
Red light signals are used with railway signs at many rail crossings. Stop when the lights begin to flash and the bells ring because a train is approaching. The driver of the vehicle nearest the crossing must stop at least 5 metres back from the nearest rail.
What is the red light at the end of a train?
They are divided into three categories: “dumb” units, which only provide a visible indication of the rear of the train with a flashing red taillight; “average intelligence” units with a brake pipe pressure gauge; and “smart” units, which send back data to the crew in the locomotive via radio-based telemetry.
What does flashing yellow mean for trains?
When the top yellow light is flashing it upgrades the signal from an Approach indication to an Approach Medium indication. In the continuing pursuit for the elimination of unneeded signal heads some railroads eliminated the center head if there was no Limited or Medium speed route at a location.
What does a white shunt mean?
proceed at caution
Shunt signals It has three lights in a triangular shape and two white lights mean proceed at caution whereas any other indication should be taken as a stop signal or a malfunction.
What does AWS stand for on a train?
Automatic Warning System
TPWS (Train Protection and Warning System) and AWS (Automatic Warning System).
What does it mean when a train keeps blowing its whistle?
The horn alerts people that a train is approaching a railroad crossing. It can also be used to warn animals or trespassers in our right-of-way along a section of track. Many people don’t realize that federal and state regulations require us to sound the horn whenever we approach any crossing.
What does NMAD mean CSX?
CR/CSX Northern. CR/CSX Western. North/South Jersey SAA. Northern Mid-Atlantic (NMAD) Implementing Agreement.
What 2 numbers can you call if the gates are lowered but you do not see a train approaching?
Flashing red warning lights indicate you must stop and wait. Do not proceed over the railroad tracks until the red lights stop flashing, even if the gate rises. If the gates are lowered and you do not see a train approaching, call the posted railroad emergency toll-free number or 9-1-1.
Does a green light mean a train is coming?
While railway lights are more complicated and vary in different parts of the world, colors are universally understood to mean the same thing: red for stop, yellow for caution and green for go.
Do trains dump waste on tracks?
The traditional method of disposing human waste from trains is to deposit the waste onto the tracks or, more often, onto nearby ground using what is known as a hopper toilet. This ranges from a hole in the floor to a full-flush system (possibly with sterilization).
Why do trains have red lights?
Emergency lights These lights activate when a train makes an emergency brake application. Emergency lights are usually red, and often flash.
