Bob W,
Gotta do the math.
The service rate is fixed.  The length of the queue, be it one or two
lanes wide depends completely on the arrival rate.  Stack 'em in one
lane, two lanes, or three lanes it doesn't matter.  Average wait time
will be the same.
The issue is fairness as some asses try to cut into the queue and get
thru faster.
For every minute they gain on the average, the rest of the group
suffers an additional minute wait.
Regards,  Bob S.

On Thu, May 7, 2009 at 4:38 PM, Bob W <[email protected]> wrote:
> Sure, but the earlier they merge, the longer the pipe (ie longer service
> time), which leads to longer queues.
>
>>
>> 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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