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

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