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Possibly the Last Traffic Roadway Detector for Traffic Lights in Birmingham

H

horsencart

master brummie
Many years ago as you approached a set of traffic lights in a vehicle the wheels of a bus/car/another would drive over a short stretch of rubber and steel, this device would in turn activate the traffic lights to go to red or green, in many of the the streets of the U.K. they are now rare as they have been replaced,


So is this the last last of the many I would think that it is the last of its type in Birmingham and really should be dug up and go to a museum this one can (for the moment be found on the corner of Moseley Rd and Highgate road,

This one as far as I know no buses would have run over it as it would have gone into a railway yard but I was stumped as to were I should post this anyroad up here are the photos,

https://my.bus.photos.fotopic.net/c1391741.html
 
Hi There is another one in Sutton Coldfield, I don't know the name of the road but it crosses Rosemary Hill Road & is one of the old single rubber sensors. Shows how long since the road surface was done as these have not been in common use for years.
Someone will know exactly where it is
Cheers
Dave Rock
 
Another piece of history, gone and almost forgotten - the electro-pneumatic traffic detector. The rubber tubes, when run over, forced air to move a diaphragm which was attached to contacts to give the electrical impulse to the traffic lights control gear. (See https://www.platinummetalsreview.com/pdf/pmr-v2-i1-012-015.pdf for an old, and fairly technical description with diagrams).
There are temporary versions still used for traffic volume measurement, two tubes stapled to the road leading to a box (usually chained to a lamp post!) often used just before road closures are necessary for road surface repair.

Who else, like me, used to jump up and down on the old ones when no traffic was around to make the lights change?
Thanks for the memory!
 
Who else, like me, used to jump up and down on the old ones when no traffic was around to make the lights change?
Thanks for the memory![/quote]


Not me we wus brung up propur liok (wipes nose with a snot filled hanky inspects same hanky and faints)
 
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