Not just European cities, but Europe in general. European population density = 269 people/mi^2, US = 91 people/mi^2. Another often overlooked fact is that the

Not just European cities, but Europe in general. European population density = 269 people/mi^2, US = 91 people/mi^2. Another often overlooked fact is that the US rail network is designed for cargo/freight not passengers and is outstanding in that regard.