urban transportation

…of the biggest problems is transport. Motor vehicles fill the streets of every city from Los Angeles to Lagos, from Beijing to Berlin, causing chronic congestion, chaotic parking, air pollution, noise, crippled bus systems, traffic deaths, and despoiled public environments, which make walking and cycling, the most sustainable modes, extremely…

…the movement of people within urban areas using group travel technologies such as buses and trains. The essential feature of mass transportation is that many people are carried in the same vehicle (e.g., buses) or collection of attached vehicles (trains). This makes it possible to move people in the same…