This problem in the forum was originally asking about data issues (there were some, now fixed) and draw order issues in OSM Carto (there are some, but difficult to solve).
With the svwd03 style:
Draw order at https://map.atownsend.org.uk/vector/index_osmf_shortbread.html#20.43/45.4426007/12.3152437 is mostly correct:
but the use of "butt" causes an issue on the trunk casing at https://map.atownsend.org.uk/vector/index_osmf_shortbread.html#20.83/45.4425843/12.315199
at the other end of the bridge https://map.atownsend.org.uk/vector/index_osmf_shortbread.html#22.16/45.44177915/12.31522945 it looks like something does not match the draw order in the style
so that needs investigating, as does the tram gap at
