Railroads take up vast amounts of real-estate, and mainlines remain mostly unused except for brief moments while a train passes by.
Four times per day, a train passes thru the Maeklong outdoor market in Thailand, yet the market makes efficient use of space and time during the trains absence.
http://www.youtube.com/watch?v=U4LCIi6_UWI
Dennis
Yikes.. that's pretty interesting thanks for sharing