How to Use Mobile Toilets in the US

The usage methods of mobile toilets in the US vary depending on the type, mainly divided into two categories: modular smart public toilets and disposable portable toilets. Here are the specific usage instructions:

Modular Smart Public Toilets (Taking the pilot project in New York as an example)

1. Unlocking Method: Users need to complete identity verification and open the door by sending a text message, scanning a QR code, using a dedicated app (such as Throne Bathroom Network), or using a tap card issued by the community. Some devices support multilingual operation interfaces, but reliance on electronic devices or physical cards may limit access for people without mobile phones or cards.
2. Usage Restrictions: Each use is limited to 10 minutes. The system will provide a dual reminder through voice (in English and Spanish) and flashing lights 30 seconds before the countdown ends. If the user does not exit after the time limit, the door will automatically open to prevent long-term occupation. This design aims to improve the turnover rate of public toilets, but it has been criticized for potentially being unfriendly to vulnerable groups such as the homeless.
3. Functional Features: The interior is equipped with touchless fixtures (such as sensor-activated faucets and flushing devices), heating and cooling air conditioning, and baby changing stations to enhance user comfort. Its core advantage lies in its ability to be rapidly deployed in streets, parks, and other scenarios through modular assembly without connecting to the city's water and sewage networks, making it suitable for short-term or long-term use in high-traffic areas.

Disposable Portable Toilets (such as a certain black plastic bag product)

1. Usage Method: The product adopts a closed design similar to a raincoat, allowing users to defecate directly after putting it on. It contains sound-absorbing materials and is opaque, protecting privacy while reducing odor diffusion. After use, the waste needs to be sealed and disposed of according to local environmental protection requirements.
2. Applicable Scenarios: It mainly meets the toilet needs during outdoor activities (such as hiking and camping) or emergencies. Its portability (a single box costs about $10 and contains multiple individual packages) and disposable nature make it a supplementary solution to traditional public toilets, but users need to take responsibility for waste disposal themselves.

Controversies and Improvement Directions: Although the time limit rules and unlocking methods of smart public toilets in New York have improved management efficiency, they may exacerbate social inequality. Future improvements could consider adding manual assistance channels, extending the usage time for vulnerable groups, or optimizing the environmental design of disposable toilets to reduce pollution.