jk1237 wrote:I disagree about the 'el's', I think they suit the urban environment. Every single NY or Chicago TV show will show a scene of a street with an elevated subway, caus they look so interesting. The concrete skytrain in Bangkok however, is not very beautiful
There haven't been operational El-s in New York for decades, with the last remaining abandoned platform being turned into a linear park.
http://www.thehighline.org/
Chicago's elevated lines are often held up as an example of how not to do it as they are noisy as all hell, severely lowering the value of all the properties that they run past. But you're right, the Chicago trestles have become an icon of that city.
jk1237 wrote:Monorail - arrrrrrrrrrrrrrrrrrgggggggggggggggggghhhhhhhhhhhh. They look dumb, they're slow as, the versions we see around the world fit about 50 people max in them, and they're just inefficient. Proof is in the pudding regarding how many serious commuter monorails there are in the world. Its simply tom-foolery.
The hanging monorail in Germany looks a bit better however
Looks? Well I don't know your tastes in aesthetics so I'll leave that one alone. I happen to think that a single beam looks much more attractive than a trestle. They do take up much less space than light rail, cost less to build, quieter, unable to derail, and can deal with steeper grades than light rail. Speed? How fast do you need a multi-stop inner CBD system to go? (You might note that the fastest train ever is a monorail

) Capacity? Again these are intended for CBD loops (like the 99C) where regularity is more important than capacity.
Monorails have pretty much the same advantages as light rail, but of their disadvantages the biggest is that they are not manufactured in commercial quantities so have similar problems to the OBahn with supply. Don't confuse commercial takeup with inefficiency. For every commercial standard we use there's a better way, it's just that the industry has adopted one way and it's difficult to change so much infrastructure.
Exit on the right in the direction of travel.