road space is vital. That is why you maximize road space by building ROW's for transit. One Transit vehicle carry a lot more passengers than a car. Efficient use of road space. You argument is so anti-transit it's funny.
Again, I fail to see why having the transit for that corridor someplace OTHER than directly on the road is anti-transit. How in the world can putting a higher capacity line UNDERNEATH a roadway be anti-transit? And what's so wrong about making a roadway more efficient for vehicle flow? Is increasing a roadway's theoretical capacity by taking buses (or streetcars) off of it, moving those passengers underground, AND adding passenger capacity to that transit corridor anti-transit? Again, your arguments are completely fallacious.
PS: My points are not only for subways. Heck, you can build the line in a trench a few metres away from the road, elevate it above the road, what-have-you. I just refuse to accept your point that the only way to not be seen as anti-transit and pro-car is to put the transit down the middle of the street to create a nice European avenue.