Imagine an electric vertical takeoff and landing (eVTOL) aircraft as a railway system in the sky. In this concept, the eVTOL operates on designated aerial tracks, similar to railway lines, weaving through urban landscapes. Passengers board at elevated terminals, and the eVTOL glides silently and smoothly above the cityscape, guided by a network of aerial routes. This “sky railway” system offers a sustainable and efficient mode of urban transportation, alleviating traffic congestion and reducing environmental impact. It combines the convenience of on-demand air travel with the reliability and accessibility of a railway, promising a futuristic and eco-friendly solution for urban mobility challenges.