Passengers and cities

[NCarlson]

I am wondering about how the game calculates passengers for a station. Does anyone know whether passengers are recieved at a station from the entire city, or just from the areas covered by the station radius? In short, do stations serve the city as a whole or just the part they are near?

[SHADOW-XIII]

always any cargo/passengers are taken from radius
(which is currently hardcoded to 4 squares from a square with station)

[Hyronymus]

If they serve the whole city the whole use of station radius would be useless. Therefore I'm inclined to say that it only uses the part that the station radius covers.