THEY have been successfully used in London, Amsterdam, and Canada and now temporary open-air urinals are coming to Sydney to stop liquored-up late night revellers relieving themselves in public.

The City of Sydney is to trial temporary public urinals on Friday and Saturday nights in Kings Cross and Oxford Street.

Relief at last... a portable urinal.

The trial is an attempt ''to address some of the public urination issues occurring in [the] area'', residents were told in a letter from the council this week, and to help reduce the city's big weekend clean-up bills.

London, Amsterdam and some Canadian cities have successfully deployed the temporary urinals to cope with late night revellers.