Many of the world’s most important cities are expanding rapidly without adequate transportation planning. People Near Rapid Transit (PNT) measures the number of residents in a city who live within a short walking distance (1 km) of high-quality rapid transit. This is a good way to estimate accessibility and rapid transit coverage in large cities. It is also a high-level proxy for the integration of land use and transport, and the fundamental first step toward creating inclusive transit-oriented development (TOD)—compact, higher-density, mixed-use, walkable development centered around transit stations.