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Arch Rd, Royersford PA
Posted: Fri Jul 23, 2010 1:19 pm
by cabman701
Did anyone notice the device attached to the visors on these signals? Any idea what it is? On each light, there is a wire leading to the device.

Re: Arch Rd, Royersford PA
Posted: Sun Aug 08, 2010 2:59 pm
by illinoistrains
could they be cameras to catch people who go across when the signals are on?
Re: Arch Rd, Royersford PA
Posted: Tue Aug 10, 2010 2:03 am
by gedunk
illinoistrains wrote:could they be cameras to catch people who go across when the signals are on?
They do look like CCD's, but why two of them?

Re: Arch Rd, Royersford PA
Posted: Mon Sep 06, 2010 3:36 am
by Robert_Gift
Radiant heaters to melt snow and ice?
Otherwise LEDs produce so little heat that the lamps remain obscured.
Detectors to detect if light is blocked by snow and ice?
But if blocked, too late to do anything about it.
Re: Arch Rd, Royersford PA
Posted: Mon Sep 06, 2010 3:29 pm
by cabman701
Robert_Gift wrote:Radiant heaters to melt snow and ice?
You know... I thought about that too. We have a significant problem here with that in the wintertime with LED traffic signals. It is certainly concievable.