Keeping them clean is the easy part. Doing it well would require building the infrastructure, maintenance, manning the station, preventing drug abuse etc, and getting into liabilities due to said abuse.
Tons of businesses stop doing business if they are forced into efforts that dont make money. The city/state should own sanitation. Not private companies.
The web app has a 5-minute cache on dynamic content - which balances info freshness with performance. The architecture supports the ultra-light, fast-loading requirements by design.