Key:mlc
 mlc
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 |
| Description |
|---|
Military load classification of a bridge, road or route  
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| Group: restrictions |
| Used on these elements |
    |
| Useful combination |
| See also |
| Status: in use |
| Tools for this tag |
The Military Load Classification (MLC) is a classification of the characteristics of vehicles and bridges used by NATO and the United States Department of Defense. In many NATO countries, circular yellow road signs with black numbers mark the MLC class of bridges. This class can be tagged using the key mlc=* and its subkeys.
How to tag
The MLC class is tagged on the highway=*, usually a bridge. Different versions of the signs exists, for which the following key variants exists. The value of the tag is always just the number depicted in the respective field of the sign.
| Key | Sign | Taginfo |
|---|---|---|
mlc
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,_STANAG_2010_-_Hervorhebung_zweistreifig.svg)
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mlc:oneway
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,_STANAG_2010_-_Hervorhebung_einstreifig.svg)
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mlc:wheeled
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,_R%C3%A4derfahrzeuge,_STANAG_2010_-_Hervorhebung_zweistreifig.svg)
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mlc:wheeled_oneway
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,_R%C3%A4derfahrzeuge,_STANAG_2010_-_Hervorhebung_einstreifig.svg)
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mlc:tracked
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,_Kettenfahrzeuge,_STANAG_2010_-_Hervorhebung_zweistreifig.svg)
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mlc:tracked_oneway
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,_Kettenfahrzeuge,_STANAG_2010_-_Hervorhebung_einstreifig.svg)
|
Examples by sign
-
mlc = 50mlc:oneway = 100 -
mlc:wheeled = 41mlc:wheeled_oneway = 55mlc:tracked = 32mlc:tracked_oneway = 40
Background
The MLC is standardized in the document Stanag 2021.
The class is given in whole numbers for vehicles, bridges, roads, and routes. Vehicles are classified according to their weight, type (tracked or wheeled vehicles) and several other parameters such as length, width, track width, axle load, axle spacing, maximum single axle load, tyre load and nominal ground contact width, axle load and and nominal ground contact length, axle wheel spacing and nominal ground contact width. Bridges, roads, and routes are classified considering physical characteristics, type and flow of traffic, effects of weather, and other special conditions.
The following table lists all classes but only considers the parameters vehicle weight and type of vehicle.
| Class | Tracked vehicles | Wheeled vehicles |
|---|---|---|
| 4 | 3,63 t | 4,09 t |
| 8 | 7,26 t | 8,16 t |
| 12 | 10,88 t | 13,61 t |
| 16 | 14,51 t | 16,79 t |
| 20 | 18,14 t | 21,77 t |
| 24 | 21,77 t | 25,40 t |
| 30 | 27,22 t | 42,63 t |
| 40 | 36,29 t | 42,63 t |
| 50 | 45,36 t | 52,62 t |
| 60 | 54,43 t | 63,50 t |
| 70 | 63,50 t | 73,02 t |
| 80 | 72,58 t | 83,45 t |
| 90 | 81,65 t | 93,89 t |
| 100 | 90,72 t | 104,33 t |
| 120 | 108,86 t | 125,19 t |
| 150 | 136,08 t | 154,22 t |
