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Traffic light conundrum

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unluckyluke
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PostPosted: 13:30 - 21 Sep 2013    Post subject: Traffic light conundrum Reply with quote

Afternoon all, was out riding yesterday and came up to a set of traffic lights at a junction. Problem was it was one of those wont change to green until a car comes/pressure pad in the floor types. I sat there on my bike for a good couple of minutes and even rolled back and forth a couple of times over the lines/sensor in the road but it wouldn't change. In the end I just went through the red light as there was nothing coming and hadn't been for the entire time I was waiting there.

I'm pretty certain there was no cameras on the junction but if I do get a fine which chance do you think I have of getting it overturned? I've reported the problem to www.fixmystreet.com so hopefully it'll get sorted.
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Shinigami
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PostPosted: 13:32 - 21 Sep 2013    Post subject: Reply with quote

these things really piss me off!
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dave666
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PostPosted: 13:32 - 21 Sep 2013    Post subject: Reply with quote

it's only illegal if you get caught...no cameras around then just run it. big deal
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Kai.Wilson
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PostPosted: 14:01 - 21 Sep 2013    Post subject: Reply with quote

If you get caught just say you were there it wouldn't change etc, what if it was 3am expect someone to wait there until a car sets it off?
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GeorgeB.
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PostPosted: 14:15 - 21 Sep 2013    Post subject: Reply with quote

There's one at a junction near me, which just does not change at all for bikes - The bemused look from pedestrians when I get off the bike, go over to the crossing which isn't affected by my lane and press the button to cross

The lights change instantly so it's a sprint to the bike to get through the traffic lights Laughing
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Shinigami
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PostPosted: 15:27 - 21 Sep 2013    Post subject: Reply with quote

is it a magnetic loop? would attaching some powerful magnets to the underside of the bike trigger it? (and pick up nails before they embed in your rear tyre)?
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Shinigami
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PostPosted: 15:29 - 21 Sep 2013    Post subject: Reply with quote

is it a magnetic loop? would attaching some powerful magnets to the underside of the bike trigger it? (and pick up nails before they embed in your rear tyre)?
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CaNsA
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PostPosted: 15:29 - 21 Sep 2013    Post subject: Reply with quote

Shinigami wrote:
is it a magnetic loop? would attaching some powerful magnets to the underside of the bike trigger it? (and pick up nails before they embed in your rear tyre)?


I have a couple of super strong magnets on my sump plug for this reason.

It does help to trigger some stubborn traffic lights, and it grabs any bits of metal that maybe floating about in the oil.

It does not prevent punctures though.
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Shinigami
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PostPosted: 15:30 - 21 Sep 2013    Post subject: Reply with quote

fair enough, was just a thought, might be worth it still just for the first two parts Thumbs Up
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unluckyluke
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PostPosted: 15:42 - 21 Sep 2013    Post subject: Reply with quote

Not too sure how they are triggered, I had always presumed it was weight triggered but i'm probably wrong. Just wondered if you'd be able to challenge a fine in court for jumping the light if it refused to change. Cyclists jump red lights all the time but they have no number plate to help convict them.
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Dave_R
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PostPosted: 17:12 - 21 Sep 2013    Post subject: Reply with quote

https://www.youtube.com/watch?v=zHtCNhABlLw
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Rockhopper
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PostPosted: 18:08 - 21 Sep 2013    Post subject: Reply with quote

They work by induction loops set into the road which is basically a metal detector. If you have a small bike and the loops are not set up correctly you can fail to trigger them.
Look for the saw cuts in the road surface and make sure your bike is directly over them.
Many people say that attaching magnets to the bottom of the bike can actually work.
Some say that turning your engine off and restarting it can generate enough of a magnetic field to trigger the loop.


Last edited by Rockhopper on 19:29 - 21 Sep 2013; edited 1 time in total
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GTR1400
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PostPosted: 18:30 - 21 Sep 2013    Post subject: Reply with quote

There's some of these near me.. Two lanes. Left one stays on green unless there's a car coming from the opposite way. Right one (to go straight on) stays on red until something triggers it (which my bike doesn't 90% of the time).

I generally have to roll my bike back, go into the left hand lane, perform a U-turn and come from the other traffic lights there, which stay on green unless something is coming from the direction that I originally came from (to the lights where my bike doesn't trigger the loop).

https://puu.sh/4wHSc.jpg

The other night, I sat at the lights on my desired route for a few seconds.. realised nothing was going to happen, and started to make my way down the forced route. Just as I was coming to the lights, they changed to red as a car came from the same way that I originally came from.. leaving me stuck again Neutral. Gutted.
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Louise
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PostPosted: 19:13 - 21 Sep 2013    Post subject: Reply with quote

Theres a set in Portslade that would never change. 4am in the morning I used to sit there for ages untill I figured out why. Would need to run them in the end if there was nothing about.
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tbourner
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PostPosted: 19:31 - 21 Sep 2013    Post subject: Reply with quote

https://www.wikihow.com/Trigger-Green-Traffic-Lights
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Wonko The Sane
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PostPosted: 10:07 - 22 Sep 2013    Post subject: Reply with quote

As a cyclist I can never get them to trigger and use the same approach with ones that won't trigger for the motorbike.

I come to a complete stop and wait,

If the light appears to be broken / not going to change I treat it as a give way where I don't have priority.

If I'm in a right turn lane, I'll ensure the lanes for straight on are green as I then know I'm only dealing with oncoming traffic.

I'm under the impression this how you should proceed if a traffic light is not working
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Cheeseybeaner
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PostPosted: 10:49 - 22 Sep 2013    Post subject: Reply with quote

If you sit for x number of minutes and it doesn't change you can only assume the light's not working and carry on, traffic lights are often defective.
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Hefty
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PostPosted: 11:18 - 22 Sep 2013    Post subject: Reply with quote

Im sure the Highway Code says treat a suspected broken light as a junction with no priority etc.
Just use that as your excuse if it comes to it eh.
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Cheeseybeaner
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PostPosted: 11:21 - 22 Sep 2013    Post subject: Reply with quote

Mr Lee wrote:
Im sure the Highway Code says treat a suspected broken light as a junction with no priority etc.
Just use that as your excuse if it comes to it eh.


Its no excuse though, just what happened. Traffic light doesn't appear to be working you can't be expected to do much other than ignore it and 'proceed with care' after sitting there for x amount of time waiting for it to change.
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-Savage-
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PostPosted: 11:38 - 22 Sep 2013    Post subject: Reply with quote

I had this problem and asked a traffic copper I know, his response was that if you can't be expected to wait forever, so you can proceed through the red light with care, but the insurance companies would rape you if you were involved in an accident after passing the red light.
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Sparkss
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PostPosted: 11:41 - 22 Sep 2013    Post subject: Reply with quote

Pretty much every roundabout in Weymouth has been replaced by traffic lights, If I got this problem then I probably wouldnt be able to ride at off peak times, but what does annoy me is every set is default to red along the main route crossroads (smaller side roads turning onto the main route get a constant green)

This means stopping every 10 yards, braking reduces MPG and they are using green house gasses as an excuse to make every motorist financially strained via fuel taxes Neutral
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goto10
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PostPosted: 13:04 - 22 Sep 2013    Post subject: Reply with quote

I recall sitting in my cage within a line of traffic about 4 cars from the front, we were waiting a while for the temporary lights to change (roadworks) - the guy in front decided that they must've packed up and so went for it, closely followed by the sheep in the next 2 cars - then a line of cars appeared from the side (so the system was a multi-way set of lights catering for more than just 2 rows of traffic) - the 2 batches of cars then met nose to nose - my mildly schadenfreudic mirth soon turned to mild despair when I then saw the lights change to allow the next row of cars to come along and add to the pile (despite them seeing the events unfolding in front of them, they must've decided that adding their own vehicles to the gridlock whilst sounding their horns would help resolve it)
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Walloper
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PostPosted: 13:05 - 22 Sep 2013    Post subject: Reply with quote

No you MUST sit there like a fcuking prick until a larger mass of iron comes along to trigger the loop, even if you have to wait 30 mins. Shocked

FFS if the lights don't change then they are broke.

Move on if safe to do so.

It's the rules of the road. It is not exactly Rocket Surgery. Rolling Eyes

Very Happy
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