Re: Daily gripe: Speeds could be higher, per USA today

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Article #13020

#13020

From: Mike Blanche
Date: Wed, 17 Feb 1999 00:00

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Douglas A. Willinger wrote in message <7acreh$qpf@nnrp1.farm.idt.net>...
>> But I'm not sure how
>>feasible a time-based speed limit system would be.
>
>Possibly no less feasible than time based HOV restrictions- especially
>considering they would apply to the entire roadway (insofar as a comparison
>with nonbarriar separated HOV from a standpoint of enforcement).


They already have different speed limits on the M25 (London's "Beltway")
depending on how busy it is, the thinking being that the lower the speed
limit, the more cars can be packed onto the road (as distances between cars
are lower at lower speeds). This is controlled by electronic speed limit
signs on overhead gantries, with police monitoring the traffic cameras to
judge traffic density and adjusting the speed limit.

It works reasonably well - the standard speed limit is 70 (although everyone
does 80+), lowered to 60, 50 or even 40 depending on traffic volumes. Of
course, the M25 often hits a point where your effective speed becomes zero
because of the volume of traffic. :)

mike

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From: "Mike Blanche" <mike@no.spam.digiserve.com>
Subject: Re: Daily gripe: Speeds could be higher, per USA today
Date: 1999/02/17
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