>=v= Just PRT with another name.
>> Wherever possible, ULTra will run along the ground, but
>> some routes might require tracks to be raised on pillars
>> above roads, creating a truly futuristic look.
>=v= Yeah, like the "futuristic" El line in Chicago.
It's important to hit this head-on. Most promoters of
new transit modes want to put them up in the sky. They
realize that you can't have driverless vehicles at
grade level (except in limited-access areas, maybe),
and it costs too much to build their low-capacity systems
underground, so the only option they see is in the air.
Really, we've had enough experience with elevated systems
NEVER to build one in a city again. Ask anyone who ever
lived near one. Go look underneath the ones that still
exist (most have been torn down). It's a disaster not to
be repeated. Putting the things on rubber tires only helps
(not solves) the noise problem. Nothing fixes the visual