This, it’s like a metal detector but, bigger. Temporary boom gates might use infrared motion sensors like automatic lights.
Comment on How does an automatic road barrier decide when a vehicle is coming?
atlasraven31@lemm.ee 10 months ago
Same as traffic lights. “Inductive-loop traffic detectors use an electrically conducting loop embedded in the pavement to send a signal to the traffic control system to indicate the presence of a vehicle.”
Narc082@aussie.zone 10 months ago
TWeaK@lemm.ee 10 months ago
It’s bigger in overall structure size, but isn’t really that big itself. It’s just a wire loop, they can be installed into existing roads with minimal effort - they just dig a narrow trench and then seal it up, it doesn’t require more tarmac.
tired_lemming@sh.itjust.works 10 months ago
Huh, so that’s a completely new concept I’ve learned today. Time to do more reading. Thanks!
Tomahtoes@lemmy.world 10 months ago
Check the road in front of the gate. Those loops are usually installed after the asphalt so there should be a loop patched up with tar a bit smaller than a footprint of an average car.
otter@lemmy.ca 10 months ago
So a large wooden horse could slip by without detection
AmidFuror@kbin.social 10 months ago
How about a wooden badger?
UncleBadTouch@lemmy.ca 10 months ago
How about a Canadian beaver? They basically are wood
atlasraven31@lemm.ee 10 months ago
An aftican badger or a european?
AmidFuror@kbin.social 10 months ago
Huh? I don't know that... ahh!
HeyThisIsntTheYMCA@lemmy.world 10 months ago
Badger my ass it’s probably milhouse