Do you know the manufacturer of the meters in Somerville? It looks like common meters run on 9-volt batteries. See a battery supplier web page here: http://www.batteryclinic.com/parking.htm
Hmmm, I wouldn't be surprised. A meter could run on one set of batteries for years. Probably a lot more cost-effective and overall less environmental impact than stringing them all to wires.
And the failure mode is pretty harmless: the meter goes dark. My guess is that the people who collect the change also carry spare batteries, and that there's a low battery indicator of some sort (possibly visible only when the meter is open).
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Date: 2006-11-28 03:33 pm (UTC)no subject
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Date: 2006-11-28 11:24 pm (UTC)no subject
Date: 2006-11-30 01:33 am (UTC)