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In the context of {{pll|Rail Vehicle Types|trains}}, traction can be described as a property of wheels to torque over rails without {{pll|Wheelslip|slipping}}. It depends on a number of factors, including the {{pll|Hauling Score|weight of a vehicle}}, {{pll|Vehicle Catalog Overview|number of powered axles, torque}}, {{pll|Grade Signs|track grade}} and {{pll|Weather|weather conditions}}.
With {{pll|Rail Vehicle Types|rail vehicles}}, traction can be described as the property of the vehicle's wheels to maintain torque on rails without slipping, whether it is by {{pll|Throttle|accelerating}} or {{pll|Braking Overview|braking}}. This property depends on a number of factors, including the {{pll|Vehicle Catalog Overview|weight}} of the vehicle, {{pll|Vehicle Catalog Overview|number of powered axles}}, {{pll|Vehicle Catalog Overview|load rating}}, {{pll|Grade Signs|track grade}} and {{pll|Weather|weather conditions}}.


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Most {{pll|Rail Vehicle Types|vehicles}} are designed to function without loss of traction in {{pll|Weather|dry conditions}}, but the rails become slippery when it’s {{pll|Weather|raining}}. In that case, gentle applications are advised when {{pll|Throttle|accelerating}} and {{pll|Braking Overview|braking}}, especially on grades.
Most {{pll|Rail Vehicle Types|rail vehicles}} are designed to function without loss of traction in {{pll|Weather|dry conditions}}, but the rails become slippery when {{pll|Weather|wet}}. In wet conditions, gentle applications are advised when accelerating and braking, especially on grades.


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Loss of traction causes wheels to either {{pll|Wheelslip|slip}} or {{pll|Wheelslide|slide}}. Apart from the imminent {{pll|Wheels & Brakes Damage|wear}}, poor judgment can lead to severe {{pll|Body Damage|collisions}} and {{pll|Derailing|derailments}}.
Loss of traction causes wheels to either {{pll|Wheelslip|slip}} or {{pll|Wheelslide|slide}}. Apart from notable {{pll|Wheels & Brakes Damage|damage to wheels}}, poor traction judgement can also lead to severe {{pll|Body Damage|collision damage}} and {{pll|Derailing|derailments}}.


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In most situations, to help increase traction, the driver can use an onboard {{pll|Sander|sander}}. There are cases where adding a {{pll|Slug|slug}} to the train can help too.
In most situations, using a {{pll|Sander|sander}} can help increase traction. There are cases where adding a {{pll|Slug|slug}} to the train can help, too.


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Vehicles that can carry significant amounts of fuel or cargo onboard, such as {{pll|Steam Overview|steam}} {{pll|Rail Vehicle Types|locomotives}}, may experience drastic differences in traction depending on their {{pll|Hauling Score|load}}.
Vehicles that can carry significant amounts of fuel or cargo onboard, such as {{pll|Steam Overview|steam locomotives}}, may experience drastic differences in traction depending on their load.
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{{See also|Sander|Wheelslip|Wheelslide|Slug|Weather}}
[[Category:Traction|1]]
[[Category:Traction|1]]

Revision as of 15:35, 10 March 2025

With rail vehicles , traction can be described as the property of the vehicle's wheels to maintain torque on rails without slipping, whether it is by accelerating or braking . This property depends on a number of factors, including the weight of the vehicle, number of powered axles , load rating , track grade and weather conditions .

Most rail vehicles are designed to function without loss of traction in dry conditions , but the rails become slippery when wet . In wet conditions, gentle applications are advised when accelerating and braking, especially on grades.

Loss of traction causes wheels to either slip or slide . Apart from notable damage to wheels , poor traction judgement can also lead to severe collision damage and derailments .

Most cabs are equipped with an indicator for traction loss, commonly a blinking warning light and sometimes with a buzzer too.

In most situations, using a sander can help increase traction. There are cases where adding a slug to the train can help, too.

Vehicles that can carry significant amounts of fuel or cargo onboard, such as steam locomotives , may experience drastic differences in traction depending on their load.