Mobile toilets originated from people’s temporary and staged needs for toilets in some specific occasions, such as construction sites, shipbuilding berths and other workplaces. In order to reduce the time for workers to travel to and from fixed toilets and improve labor efficiency, mobile toilets are set up on the slipway and on the construction site.

Large-scale gatherings, sports events and other large audiences have temporary needs for toilets, etc. Due to the lack of the number and layout of public toilets in the city, the government recommends that mobile public toilets be arranged in areas where it is relatively difficult to build fixed public toilets to make up for the shortage of public toilets and unreasonable layout.