🚀 go-pugleaf

Bentley wrote:
> Unfortunately I have lost it. Anyhoo, I seem to remember that 40mph
> offered the best mix. Any faster than that and the cars begin spacing out,
> giving you a smaller number of vehicles/mile x speed. Slower than that,
> and the speed factor drops too fast as the vehicle spacing compresses. And
> when you get down to sub 20mph (I'm talking Interstates or Limited access

You typically see freeways in one of two states: relatively high speed
operation or gridlock.  40MPH might be an optimium, but when the traffic
load on a freeway gets so high that the speed drops much below 55, any
destabilization of the flow causes immediate stop and go conditions.  That's
why congestion on some roads just appears out of no where.  One day there is
good speed if crowded, the next dead stop.  All it took was a few more cars
to muck up the works and then things went down hill from there.

-- 
*****************************************************
* Aaron M. Renn                                     *
* Email: arenn@urbanophile.com                      *
* Homepage: <URL:http://www.urbanophile.com/arenn/> *
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