Key:maxspeed:conditional
 maxspeed:conditional
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Specifies a conditional maximum legal speed limit on a road, railway or waterway, which only applies under certain circumstances 
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| Group: restrictions |
| Used on these elements |
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| Requires |
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| Useful combination |
| Status: de facto |
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The maxspeed:conditional=* tag is used on ways to define the maximum legal speed limit which depends on certain situations, such as the time of day, weather, or another particular condition, for a highway=*, railway=* or waterway=*. This tag is used in addition to maxspeed=*, which specifies the normal maximum speed limit when the condition does not apply.
By default, values are interpreted as kilometres per hour. If the speed limit should be specified in a different unit the unit can be added to the end of the value, separated by a space.
The conditional maximum speed limit employs conditional restrictions syntax.
Examples
| Identification | Tagging | Remark | ||
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maxspeed=130 maxspeed:conditional=120 @ (06:00-19:00) |
Speed limit of 120 km/h applies only from 6-19 h, otherwise applies 130 km/h.
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maxspeed=80 maxspeed:hgv:conditional=60 @ (weight>7.5) |
Conditional speed limit applicable to a specific transportation mode with a weight condition. | ||
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maxspeed:conditional=40 @ (Mo-Fr 08:00-09:30,14:30-16:00; PH off; SH off) | Conditional speed limits during school times. | ||
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maxspeed=80 maxspeed:conditional=60 @ wet |
Wet weather conditional speed limit | ||
| maxspeed=80 maxspeed:conditional=60 @ snow |
Snowy weather conditional speed limit | |||
| maxspeed=120 maxspeed:conditional=100 @ winter |
Different speed limit in winter. Commonly used in Finland where it is not the same dates every year, but the switching date is country-wide and decided yearly by a Finnish authority (information in finnish). | |||
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maxspeed:conditional=20 mph @ flashing | Lower speed limit when lights are flashing (used around some schools) | ||
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maxspeed:conditional=25 mph @ children_present |
Lower speed limit when children are present (used around some schools) |
More info
This tag combines complexity of maxspeed tagging with complexity of conditional tags, but sometimes it is needed to record real complexity. See more info at Conditional restrictions and Key:maxspeed pages.