A high-quality public transport system is defined by the "Three Rs": Reliability, Reach, and Rapidity. Reliability means that the bus or train arrives when the schedule says it will, allowing citizens to trust the system for work and appointments. Reach refers to "coverage"—the network must have stops within a 5-10 minute walk of most residences and key destinations to be truly useful. Rapidity is achieved through dedicated lanes (for Bus Rapid Transit) or underground tracks (Metro) that bypass city traffic. In 2026, a "good" system also requires Intermodal Integration, where a single "IC card" or mobile app works for buses, trains, and even shared bikes. Comfort and safety are the final pillars; clean, well-lit stations and frequent service (every 5-10 minutes) ensure that public transit is seen as a "choice" rather than a "last resort." Global leaders like Singapore and Tokyo excel by making the transition between different modes of transport almost invisible to the passenger.