Subways and rail systems are constant contact zones
In mass transit, contact is unavoidable: rails, turnstiles, ticketing touchpoints, doors, and station interfaces. These surfaces are touched repeatedly—hour after hour—making continuous reduction essential.
- Hand-contact scale: NYC’s system is referenced as 18M+ pairs of hands daily.
- Peak congestion: high turnover makes “cleaning between touches” impractical.
- Priority assets: rails, kiosks, fare gates, elevator buttons, escalator rails.