Recently I came across some aspects regarding maxspeed that are a little confusing:
For the numeric case (see https://wiki.openstreetmap.org/wiki/Key:maxspeed#Values)) it is mentioned: “The maximum fixed numeric speed limit, followed by the appropriate unit if not measured in km/h when no units should be included.” On the other hand on the same page in the Developers section the regular expression is ^([0-9][.0-9]+?)(?:[ ]?(?:km/h|kmh|kph|mph|knots))?$ which seems to accept situations like maxspeed=10 km/h.
In the Developers section it is also mentioned another regular expression that parses signals and none
, but the Values section doesn’t mention anything about signals as being a valid value.
So my question is which part of the documentation is right?