The 20 limit "default" as imposed by the Sennedd had,apparently, an option for each council to choose where to leave it at 30. I am not aware of a cost to do so just £32M to implement nationwide. There are clear discrepancies in how each council applied it. Ours in Carmarthenshire seem to have opted for very few exeptions compared to neighbouring council areas.
Another phzzle is fixed speed cameras. Large numbers were removed prior to the 20 zoning. Newer type ones were left in place so far fewer now than before. Probably the removed ones were unable to be accurate at 20?
The Sennedd has now put it back into the hands of councils to survey for opinions ( they ignored the initial survey pre implementation one). A cop- out to push blame elsewhere?
Carms have asked if we want to pick a single road location to revert to pre 20. A loaded survey if ever there was one!
Local councillors seem against changes and quote stats of " fewer accidents" . No source of data and accuracy. The original justification was to reduce deaths. Again loaded comments with a seemingly Eutopian target of zero and ignoring the overall negative effects. Congestion is increased in most areas due to the concentrating effect on traffic entering a 20 zone. No mention of air quality changes, increased journey times. New rat run routes created as locals change routes.
Local transport is a joke, even in larger towns where it might make sense.
Ideology at it's extreme.