- I feel that osm convention should encourage all mappers to specify units (e.g. 22 m). - That whitespace should be allowed (e.g. 22m, 22 m, or even 22 meters). - And that local units should be encouraged (e.g. 22 feet, or 22' 0").
The wiki templates, if spruced up, could define the rules uniformly for all keys that take a measurement unit (e.g. height, width, ele, max_height, etc). -- Parsers are cheap. Any parser worth using can convert 22m, 22 m, 22 feet or a variety of reasonable variants. Humans are messy. Forcing them into boxes generally goes badly. --- Specific to the USA: If I'm mapping a "6000 foot" sign I sure don't want to enter "1828.8m" or worse yet "1828.8". The same goes for anything that takes a unit. maxspeed=88mph is better than maxspeed=88.
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