Light Rail Myths and Realities 4958How about this: Although, he buttumes KRETP in his analysis. Being from a nation of more displined driving (Japan) that is understandable. He does realize that it varies from place to place...
Oh, now you are going to discuss again. Of course not, it's no longer free flow when the lanes are blocked. That's the point, poor lane discipline reduces capacity.
It doesn't matter because you can't measure it. Now isn't that arrogant. So everything we couldn't measure centuries ago didn't matter? Come now, this is the height of human arrogance to make such a statement.
With enough drivers with poor lane discipline free-flowing conditions cease to be free-flowing. And your 'can't measure it so it doesn't matter' idea won't fly with me. Much of engineering knowledge has come from learning how to measure something. Before learning how to measure it, failures went unexplained or explained incorrectly. Some things just did not work. Then when measurement techniques were developed, solutions followed.
Could you please refrain from this technique? It's old and tiresome.
I believe the system optimum is readily apparent. I noticed immediately when I got behind the wheel in Germany. I don't think I had gone but a few miles before the total absence of needing to fight for every inch of space in a construction zone backup hit me.
I don't know a single piece of roadway that works well for everyone under full out, me-first-f***-you driving. Could you name some chicago area examples of this design feature?
Do you actually design for people to move from the right lane of the interstate into the acceleration lane for an ON RAMP and use it as short live PbuttING lane? Why do shoulders end in overpbutt supports? If it was really designed for individual best outcome decisions to be best for all, those wouldn't be there. Because upon reaching them, the shoulder pbutter tries to force his way back into traffic, forcing the right lane to a stop setting up a braking wave in heavy traffic. There is a similiar effect when the acceleration lane pbutter runs out of room. Shoulder pbutting, acceleration lane pbutting, LLBing, and whole host other behaviors including using an ON-ramp as an EXIT in reverse gear or turning around are all designed for? Were the dan-ryan's express exits to the locals and the enterances to the express really designed to be right hand side pbutting lanes? I can go on and on about the individual best choices that slow down the system. I cannot fathom the road designers thinking that merging the right lane of I90 and left lane I94 and letting people 'fight it out' in 'individual best choice' was a good thing. That causes a daily backup as traffic pretty much jams to a stop as people fight it out.
Light Rail Myths and Realities 4962The entire statement: Poor lane discipline cannot impede free flow conditions by definition. Poor lane discipline is irrelevant to capacity because it isn't possible to measure in...
Germany seems to do well with it. Anyway, the idea is not to have clumps form when faster traffic meets slower traffic. To allow it to flow by as best as possible instead of as little as possible. I don't see any benefit to keeping traffic bottled up, and prematurely ending free-flowing conditions just so people can drive willy-nilly in any lane of their choosing. Why shouldn't the goal be to keep a roadway free flowing or close to it as much as possible?