Table 2 Functional requirements indicators.
Indicator code | Indicator |
|---|---|
\({{SA}}_{1}\) | Disinfection status display |
\({{SA}}_{2}\) | Rapid temperature screening at entry |
\({{SA}}_{3}\) | Health code verification for boarding |
\({{SA}}_{4}\) | Contactless entry (e.g., QR code, facial recognition) |
\({{SA}}_{5}\) | Timely sanitation of stations/carriages |
\({{SA}}_{6}\) | Disinfectant dispensers in stations/carriages |
\({{SA}}_{7}\) | Mask detection alert systems |
\({{SA}}_{8}\) | Public health broadcast announcements |
\({{SA}}_{9}\) | On-site PPE vending machines |
\({{SA}}_{10}\) | Temporary medical assistance stations |
\({{SA}}_{11}\) | Advanced air filtration systems (e.g., fresh air, negative pressure) |
\({{SA}}_{12}\) | Station/carriage safety personnel deployment |
\({{SA}}_{13}\) | Emergency rescue equipment installation |
\({{SA}}_{14}\) | Compartment partition barriers |
\({{SA}}_{15}\) | Designated isolation compartments |
\({{SA}}_{16}\) | Passenger capacity control |
