Dream on, John.
The stutter step stop and go created by the need to do a low speed
merge is an order of magnitude less efficient than a 30 mph merge 5
minutes ahead of the constriction. A line of cars at 30 mph is faster
than two or three lines at 5 mph.
On May 7, 2009, at 11:30 , John Francis wrote:
But the single lane *isn't* slower than the two double lanes.
The choke point (the construction) limits the amount of traffic
that can pass. The same amount of traffic passes that point
no matter whether it is fed by a single lane travelling at X mph
or by two lanes each travelling at 0.5X mph.
There is a second-order efficiency gain by having multiple lanes,
though; if somebody stalls, overheats, or has some kind of a problem
there is still some traffic flowing in the other lane.
Joseph McAllister
[email protected]
http://gallery.me.com/jomac
http://web.me.com/jomac/show.me/Blog/Blog.html
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