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<languages />
<languages />
Speed limit signs are circular white signs with a red outline that can be found on the right side of the tracks, with a number informing of the maximum speed the train is allowed to travel at. The limit applies to the section ahead of the sign, all the way up to the next speed limit sign or a switch, whichever comes first.
Speed limit signs are poled structures found on the right side of {{pll|Railway Terminology|tracks}}, designed to inform of the maximum speed that {{pll|Rail Vehicle Types|rail vehicles}} are allowed to travel at. The limit applies to the section ahead of the sign, all the way up to the next speed limit sign or a {{pll|Switches & Switch Signs|switch}}, whichever comes first.


The speed that a sign is limiting to is usually dictated by the physical properties of the track ahead, namely the turn radius of its curves. Going any faster than the limit poses a risk for derailment.
Speed limit signs are circular white boards with a red outline, and a number in the middle.


Since the trains are long, the driver must be aware of not only the speed limit ahead of the train, but also all the way to the rearmost vehicle. For example, when a heading locomotive passes a sign with a higher speed limit than the previous, the driver still needs to wait for the last car to pass it, before accelerating. Otherwise the cars in the rear would go over the limit in their track section, and potentially derail.
The speed that the sign is limiting to is usually dictated by the physical properties of the track ahead, namely the turn radius of its curves. Going any faster than the limit poses a risk for {{pll|Derailing|derailment}}.
 
Since trains are long, you need to be aware of not only the speed limit ahead of the train, but also all the way to the rearmost vehicle. For example, when the front end of a train passes a sign with a higher speed limit than the previous, you still need to wait for the rear end to pass it, before {{pll|Throttle|accelerating}}. Otherwise the rear end would go over the limit in its track section, and potentially derail.


The speed limit applies immediately following a sign. Thus, the signs must be observed and reacted to from a distance. That said, signs that show lower limits than the previous are always placed with enough headroom for a train to slow down even after passing them. This is a safety measure, but should not be relied upon outside of an emergency.
The speed limit applies immediately following a sign. Thus, the signs must be observed and reacted to from a distance. That said, signs that show lower limits than the previous are always placed with enough headroom for a train to slow down even after passing them. This is a safety measure, but should not be relied upon outside of an emergency.
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To help see them better at a distance, speed limit signs show the speed with fewer digits. Their value is divided by ten, so for example, the limit of 50 km/h is simply shown as "5".
To help see them better at a distance, speed limit signs show the speed with fewer digits. Their value is divided by ten, so for example, the limit of 50 km/h is simply shown as "5".


To help anticipate if the next limit will involve a significant change of speed, speed signs are accompanied by appendix signs. If the next limit has a speed increase of 20 km/h or more, a green appendix with an arrow pointing up is added to the sign. In similar fashion, if the speed limit ahead has a speed decrease of 20 km/h or more, a red appendix with an arrow pointing down is added to the sign.
To help anticipate if the next limit will involve a significant change of speed, speed signs are accompanied by appendix signs. If the next limit has a speed increase of 20 km/h or more, a green appendix with an arrow pointing up is added to the sign. Similarly, if the speed limit ahead has a speed decrease of 20 km/h or more, a red appendix with an arrow pointing down is added to the sign.


In Derail Valley the speed limit for going through yards is 30 km/h, except for mainline tracks going through, where the speed limit is 50 km/h. For operations involving contact between vehicles, such as shunting, the speed limit is 5 km/h.
In Derail Valley the speed limit for going through {{pll|Railway Terminology|yards}} is 30 km/h, except for mainline tracks going through, where the speed limit is 50 km/h. For operations involving contact between vehicles, such as {{pll|Coupling|coupling}} and {{pll|Shunting|shunting}}, the speed limit is 5 km/h.


Installing a distance tracker gadget helps determine when the last car has passed the speed limit sign, which can help safely increase average speeds.
Installing a {{pll|Distance Tracker|distance tracker gadget}} helps determine when the last car has passed the speed limit sign, which can help {{pll|Driving Efficiency|safely increase average speeds}}.


{{See also|Grade Signs|Track ID Signs|Derailing|Railway Terminology|Coupling|Driving Efficiency|Shunting|Distance Tracker}}
[[Category:Infrastructure|2]]
[[Category:Infrastructure|2]]

Revision as of 12:47, 11 March 2025

Other languages:

Speed limit signs are poled structures found on the right side of tracks , designed to inform of the maximum speed that rail vehicles are allowed to travel at. The limit applies to the section ahead of the sign, all the way up to the next speed limit sign or a switch , whichever comes first.

Speed limit signs are circular white boards with a red outline, and a number in the middle.

The speed that the sign is limiting to is usually dictated by the physical properties of the track ahead, namely the turn radius of its curves. Going any faster than the limit poses a risk for derailment .

Since trains are long, you need to be aware of not only the speed limit ahead of the train, but also all the way to the rearmost vehicle. For example, when the front end of a train passes a sign with a higher speed limit than the previous, you still need to wait for the rear end to pass it, before accelerating . Otherwise the rear end would go over the limit in its track section, and potentially derail.

The speed limit applies immediately following a sign. Thus, the signs must be observed and reacted to from a distance. That said, signs that show lower limits than the previous are always placed with enough headroom for a train to slow down even after passing them. This is a safety measure, but should not be relied upon outside of an emergency.

To help see them better at a distance, speed limit signs show the speed with fewer digits. Their value is divided by ten, so for example, the limit of 50 km/h is simply shown as "5".

To help anticipate if the next limit will involve a significant change of speed, speed signs are accompanied by appendix signs. If the next limit has a speed increase of 20 km/h or more, a green appendix with an arrow pointing up is added to the sign. Similarly, if the speed limit ahead has a speed decrease of 20 km/h or more, a red appendix with an arrow pointing down is added to the sign.

In Derail Valley the speed limit for going through yards is 30 km/h, except for mainline tracks going through, where the speed limit is 50 km/h. For operations involving contact between vehicles, such as coupling and shunting , the speed limit is 5 km/h.

Installing a distance tracker gadget helps determine when the last car has passed the speed limit sign, which can help safely increase average speeds .

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