Hi, regarding Maxspeed tag you added here. Just in case you didn't know, if there is no explicit sign but we know in which area road is and assume some common speed limit - we can tag "implicit" value as explained in the wiki: https://wiki.openstreetmap.org/wiki/Key:maxspeed#Implicit_maxspeed_values. Something like "IL:urban". And then if law is changed - no need to run and update all the streets with common speed limits.