T O P

TIL The main trigger technology used in traffic light sensors is MAGNETS! (the induction loop).

TIL The main trigger technology used in traffic light sensors is MAGNETS! (the induction loop).

AKtigre

And it sucks when you're on a motorcycle and can't set it off cause you're not metal enough.


tahuff

If your bike has a side stand, try putting it down. I’ve tripped the sensor that way


Unable_Roof9103

Also sticking decently sized rare earth magnets to the bottom of it should work.


VegaSpec

And as an added bonus you'll pick up a lot of metal debris from the road!


AKtigre

Ah, good advice. My street bike days are probably over (and the nearest stoplight is 250 miles away), but back in the day I mostly just ran the light if nobody was around.


memento22mori

Holy shit, do you live in Antarctica?!


AKtigre

Alaska


memento22mori

Hmmm interesting.


TheFutureIsHistory

You need more iron in your diet.


Drogan_The_Wolf

which is why most cities/countries are now transitioning to detection camera's and radar systems to better detect waiting vehicles


muideracht

Fuckin traffic lights, how do they work?


ScumoForPrison

depends on location and how busy they are as the magnets will trigger a timer and some lights will also just have a set rotation due too traffic flow, peak hour and time of day.


AnthillOmbudsman

*tries to fit that into the Thrilla Killa Klownz song*


DaveOJ12

Don't you mean the ICP song?


Khontis

This is interestingly also how the sensor in a drive thru works. So you don't need to scream hello. They know you're there.


m053486

Everybody knows you’re supposed to moan gently for attention in the drive-thru


daKEEBLERelf

*and the pickles!*


toastysidearm

Thank you, kind stranger, for making my day.


rapiertwit

As a former bicycle commuter, fuck those things.


ScumoForPrison

as a driver that aggravated a existing back injury too evade a peloton of entitled lycra wearing arsehats because the guy 50 metres in front couldnt see any traffic and changed lanes and none of the 100+ casual riders bothered too look and all changed lane in unison nah fuck u and the bike you rode in on!


DaveOJ12

Bitter much?


Dustyplatapus96

I think most cities only use these at times where traffic is really slow - 3am ish. In my experience that’s the only time I’ve dealt with these things and had them be really obvious to me. The lights are mostly on a pre determined schedule based on a specific cities traffic needs, I think. Imagine a sensor only based system during rush hour.


SanLeone1966

JP cycle has a magnetic trigger strip about 3 long that attaches under the frame of your bike.


pale_delicate_flower

I love you so much right now


SanLeone1966

Wait till you hear about my deer whistle 😅…


Unkleruckus86

I just ride with my lips in a whistling position and let the wind do the work.


SanLeone1966

You’re gonna eat some bugs momma, but it’s all protein anyway keep the rubber side down and your knees in the breeze. Stay safe and enjoy the ride ✊🏽


valdus

>TIL The main trigger technology used in traffic light sensors is ~~MAGNETS~~ MAGIC! FYFY


Unkleruckus86

You can't spell magnetic without magic


skidawayswamphag

Well…. Do you think those straight AF lines at intersections that are covered in tar are guidelines for the paint crew?


Jazzycake7

I thought there was some kind of scale underneath that detected the weight of cars.


skidawayswamphag

No, that’s not financially realistic. It’s a magnet. Also, the lights are timed for traffic most of the time. Perfect example: a side road from a hospital I worked at had a light that was well timed during “peak (shift change)” hours, but when we got off work at 11p that light would stay red on our side road for a good 5 minutes unless you rolled over the magnetic line… which was actually in the crosswalk.


Jazzycake7

Yeah, there's different kinds. I know what your talking about. The city I work in uses cameras to sense cars. Also, if you read the aritcle this isn't just a big expensive magnet. It's some wires that have a magnetic force that causes them to change the light when it's magnetic field is disrupted by metal.


skidawayswamphag

Well…. Do you think those straight AF lines at intersections that are covered in tar are guidelines for the paint crew?


ScumoForPrison

OP isn't the brightest of sparks and is the downvoter in this case i suspect!


Jazzycake7

Actually not me, someone else must have thought they were an ass. I replied to this comment the first time they posted it. Didn't see this same comment reposted until now.