Key:maxspeed: Difference between revisions
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This Key allows the specification of the maximum speed that is allowed. |
This Key allows the specification of the maximum speed that is allowed. Values are assumed to be in km/h unless units are explicit - e.g. speed limits in miles per hour should be "30mph". |
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Values are given in km/h without the "km/h". Mph values shall be converted to km/h. |
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Note: The conversion of units shall be task of the editor software, not of the routing software (Do it only once!) |
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See also [[OSM_tags_for_routing/Maxspeed|this page]] for a table of default maxspeeds in various countries. |
See also [[OSM_tags_for_routing/Maxspeed|this page]] for a table of default maxspeeds in various countries. |
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Revision as of 13:07, 15 January 2009
 maxspeed
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| Description |
|---|
Maximum speed in km/h.  
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| Group: Restrictions |
| Used on these elements |
    |
| Useful combination |
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| See also |
| Status: de facto |
| Tools for this tag |
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This Key allows the specification of the maximum speed that is allowed. Values are assumed to be in km/h unless units are explicit - e.g. speed limits in miles per hour should be "30mph".
See also this page for a table of default maxspeeds in various countries.
Example
| mph | =km/h | ~km/h |
|---|---|---|
| 15 | 24.14 | 24 |
| 20 | 32.187 | 32 |
| 25 | 40.234 | 40 |
| 30 | 48.280 | 48 |
| 35 | 56.327 | 56 |
| 40 | 64.374 | 64 |
| 45 | 72.420 | 72 |
| 50 | 80.467 | 80 |
| 55 | 88.517 | 88 |
| 60 | 96.561 | 96 |
| 65 | 104.607 | 104 |
| 70 | 112.654 | 112 |
| 75 | 120.701 | 120 |
| 80 | 128.748 | 128 |
FAQ
If there is no speed limit, like on some German motorways, please use maxspeed=none.--Lulu-Ann 08:51, 23 July 2008 (UTC)
- Also read: Proposed features/maxspeed none --Cbm 07:57, 3 October 2008 (UTC)
- If there are automatic traffic signals with speed limitations, please use maxspeed=signals. --Lulu-Ann 08:51, 23 July 2008 (UTC)
If there is no specific numeric maxspeed given e.g. in pedestrians precincts in Germany or Austria, please use maxspeed=walk--Cbm 07:57, 3 October 2008 (UTC)
- Also read: Proposed features/maxspeed walk --Cbm 07:57, 3 October 2008 (UTC)
- What to do if the real possible speed is below the allowed speed?
- Always tag the allowed speed (as maxspeed=*)!
- Add maxspeed:practical=* for the real maxspeed.
- Perhaps we need to add some time-based values like maxspeed:practical:rushhour=* or maxspeed:practical:nighttime=*
- This is just an idea it has neither been approved or rejected by the community. Please discuss on the talk-page! --Phobie 05:46, 4 December 2008 (UTC)
See also
Discussion
discuss at talk-page