Re: Traffic Congestion (2020)

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Article #14367

#14367

From: John Lansford
Date: Mon, 13 Jul 1998 00:00

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"Aaron M. Renn" <arenn@urbanophile.com> wrote:

>The problem is that LOS E exists more in theory than in practice.

According to the brand new Capacity Manual, LOS E isn't a range of
traffic volumes, it's a POINT on the graph. This actually makes more
sense than a range anyway; either the road is at capacity or it isn't.

> Once the
>road is at that level, any destablizing influence (which given the ability
>of most US drivers occurs rather rapidly) causese as almost immediate
>transition to LOS F, decreased throughput, yet more congestion, etc.

Which is why most DOT's design a highway for LOS C or D, not E.

John Lansford, PE

The unofficial I-26 Construction Webpage:
http://users.vnet.net/lansford/a10/

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From: johnl@vnet.net (John Lansford)
Subject: Re: Traffic Congestion (2020)
Date: 1998/07/13
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