building conveniences gender hers his ladies and gents loos public public conveniences public toilet signs structure toilet WCs access accessibility advice advising availability communicating communication convenience convenient direction indication indicator information informative informing ladies-and-gents loo personal public-convenience public-toilet rest-rooms sanitation sign toilets wc disability disabled ladies wheelchair-access women’s-toilets public-conveniences shape shaped shapes stand-alone style gents men men’s-toilets blind braille genderless location unisex handicapped parents-change-room symbols wheelchair-dependent