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. On Thu, May 07, 2009 at 01:46:44PM -0400, Paul Stenquist wrote: > But the distance you travel in a single, slower lane becomes less if you > wait to merge. So if the single lane is slower than the two double > lanes, efficiency is gained by merging at the last opportunity. > Paul > On May 7, 2009, at 11:08 AM, Bob Sullivan wrote: > >> Bob, >> That's not really true. >> Make the pipe as big as you want (as many lanes) before the >> constriction (to one lane). >> Traffic flow will not improve. >> Regards, Bob S. >> >> On Thu, May 7, 2009 at 2:29 AM, Bob W <[email protected]> wrote: >>> If everyone merges early they still need to know the rule to avoid >>> huge jams >>> in one or both lanes, but the unused lane is no longer serving >>> traffic, so >>> the total speed of the traffic is much slower. >>> >>> Bob >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
