Talk:Proposed features/ref speed

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Possible conflicts

obsoletes maxspeed=none

This proposol might conflict with Proposed features/maxspeed none

The law citied on Wikipedia states the same as the regulation concerning sign #380 (above),which regulates particular roads, for motorway and trunk roads in general: That, if no other rule in place, drivers are _suggested_ not to exceed a speed of 130km/h on Autobahn and Autobahn-like streets (even on good road and weather conditions).


On the road this is merely indicated at the borders:

Zeichen 393.svg

tagging Zeichen 282.svg on Autobahn as ref_speed=130 would make Proposed features/maxspeed none obsolete for german motorways.


  • No, recommended_speed=130 implies maxspeed=none but does not obsoletes it. On non-motorways with recommended_speed=80-sign maxspeed=100 is implied. This means maxspeed should always be set! See the usage suggestions for relations on Talk:Proposed_features/maxspeed_none! --Phobie 15:02, 6 September 2008 (UTC)
  • no is doesn't conflict with real maxspeeds or default-set maxspeeds, because "recommended speeds" are only "security advices" and have no meaning of are limitation like maxspeed does, so it neather implies nor obsolete maxspeeds. If there's a maxspeed set by sign (not by law-default) it should ber tagged with maxspeed=* seperatly.
btw.: Implied default-maxspeeds should never be tagged. For that we have OSM_tags_for_routing/Maxspeed. --Cbm 08:26, 3 October 2008 (UTC)


  • What about adv_max_speed (advised).--Skinkie 13:36, 17 September 2008 (UTC)
  • same as above: recommended speeds are only "security advices" and have no meaning of limitation like maxspeed does. --Cbm 08:26, 3 October 2008 (UTC)

Better call it this tag 'recommended_speed' ?

Maybe it's better to called it recommended_speed=*? --Cbm 01:42, 21 August 2008 (UTC)

Yes, should change this proposal to suggested_speed or recommended_speed --Phobie 14:52, 6 September 2008 (UTC)
But since the recommended speed is a recommended maxspeed we should better name it maxspeed:recommented in conjunction with maxspeed:practical --Phobie 21:23, 7 December 2008 (UTC)

„Freiwillig 30“

This could also be used to tag the „Freiwillig 30 – Den Kindern zuliebe“ signs. In Germany, these signs often exist in residential areas where children play on the road but the normal city speed limit applies. The sign tells people to drive 30 instead of 50 km/h, but legally seen they don’t have to. --Candid Dauth 14:23, 2 May 2009 (UTC)