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The axle load of a wheeled vehicle is the total weight bearing on the roadway for all wheels connected to a given axle.Axle load is an important design consideration in the engineering of roadways and railways, as both are designed to tolerate a maximum weight-per-axle (axle load); exceeding the maximum rated axle load will cause damage to the roadway or railway tracks.
an axle load of more than 10 tonnes for a single non-driving axle and 11.5 tonnes for a single driving axle; a width of more than 2.9 metres; a rigid length of more than 18.65 metres; Anyone wishing to transport an abnormal load must notify the police, highway authorities and any on-route bridge and structure owners such as Network Rail. [14]
Maximum load on class C route: m > 30 t (30 long tons; 33 short tons) [note 4] F, O, U, Z: Maximum load on class C route: m > 30 t (30 long tons; 33 short tons) for twin-axled wagons / m > 40 t (39 long tons; 44 short tons) for three-axled wagons [note 4] Ia, La: maximum load at limit of load C: m > 40 t (39 long tons; 44 short tons) [note 4]
Containers have weight limits designed to allow their transport by road trucks, which have lower weight limits than trains. Outside the U.S., a common limit for railways is 8 tonnes per metre (8.1 short ton/yd; 7.2 long ton/yd) train length and 22.5 tonnes (22.1 long tons; 24.8 short tons) per axle. A four axle container car can take 90 tonnes ...
By February 2008 another 100 of these wagons were to have been delivered to the DB and another 300 by 2010. These latest wagons will have an axle load of 23.5 t (23.1 long tons; 25.9 short tons) and an unladen weight of no more than 24.5 t (24.1 long tons; 27.0 short tons), resulting in a load limit of 69.5 t (68.4 long tons; 76.6 short tons).
Increasing axle load limits have allowed some of the heavier loads formerly assigned to two-bay hoppers to be assigned to larger, more efficient three-bay hoppers. Some covered hopper cars retain the conventional centersill as a strength member transmitting compression and tension forces from one car to the next.
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Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...