Urinals are provided in men’s public restrooms for the purposes of urinating in a standing position. Designed with automatic, manual, timed, or door regulated flushing, urinals are commonly arranged in rows of single sanitary fixtures with or without the inclusion of privacy walls. For men, urinals are more space efficient, faster, and more sanitary in busy public restrooms than toilet stalls. Until the 1900s street urinals were commonly seen, but they were gradually replaced as a result of their smell and lack of hygiene. Several types of female urinals have been designed, but their implementation in public restrooms is rare.