Reporter: seawolff
[Submitted to the original trac issue database at 8.25pm, Monday, 5th April 2010]

man_made=pier is fine in zoom>=16, but too thick in zoom<=15. Typical piers in harbours for sailing boats have 1-2m width with 20-30m distance. In mapnik maps they collide in zoom<=13.

man_made=breakwater should be rendered darker (medium or dark grey) then piers. A pier is a way, a breakwater is a barrier. They should have different colours.

Example: This harbour
http://www.openstreetmap.org/?lat=54.40143&lon=10.21912&zoom=16&layers=B000FFF
looks like land in zoom=12. Pier and breakwater are indistinguishable.