A 30mph zone is NOT the same as a 30mph speed limit, despite the terms used interchangeably in common speak in the UK. Yes, many roads in the New Forest are part of a 40mph zone (maxspeed:type=GB:zone40), however many roads around the waterside and Totton have a 40mph speed limit (maxspeed:type=sign). There is no such '30 zone' in the UK, with 30mph roads either applied using repeater signs (maxspeed:type=sign) or street lights (maxspeed:type=GB:nsl_restricted). The "lit" tags should be applied to roads before either of these tags are applied to a road with a 30mph speed limit.