>>1657586Nothing, especially with electric buses coming out. But if you already have the tram tracks down and the depots and employees and 200 vehicles, adding an extra mile and another 10 vehicles is preferable to bus extension.
I guess there's also a security thing. A tram is the maximum limit of "I shouldn't be an asshole because the driver might notice and stop" for normal people. Multiple train cars means at least one car with all strangers and no authority.
