VC and lights at intersections
#26
Part-time epistemologist
Joined: Jun 2005
Posts: 5,870
Likes: 3
From: Washington, DC
Bikes: Jamis Nova, Bike Friday triplet, Bike Friday NWT, STRIDA, Austro Daimler Vent Noir, Hollands Tourer
Originally Posted by MassBiker
So what do you do at a broken signal? Well, you wait until there's no cross-traffic, and you enter or go through it. Just like at a Stop sign.
The real problem occurs when there's so much cross traffic that you can't safely enter or pass through it. Then you typically have to either hope that some behemoth metal device comes up behind you to trigger the detector, or you have to become a pedestrian.
The real problem occurs when there's so much cross traffic that you can't safely enter or pass through it. Then you typically have to either hope that some behemoth metal device comes up behind you to trigger the detector, or you have to become a pedestrian.
-G
#27
Senior Member
Joined: Nov 2004
Posts: 216
Likes: 0
From: North Texas
Bikes: Old Schwinn
If the sensor won't sense your bike and the light won't change it's broken. The vehicle code says that you can go through even though it's red. So it's VC to stop at the light and proceed through on the red once you know it won't change for you.
#28
Senior Member
Joined: Mar 2007
Posts: 4,071
Likes: 0
Originally Posted by JRA
In some states they are. In other states bicycles aren't vehicles.
Whew, boy! What a load of cow manure. Time to fertilize the lawn, is it?
Violation of our Constitutional rights. Yea, good one!
You be sure to let us all know when you find a court that will hear that case.
Also, that was a nice use of a sockpuppet to set up a strawman argument in the preceeding post. Got that propaganda machine cranking up, do ya? Be sure to spread it on real thick now.
Whew, boy! What a load of cow manure. Time to fertilize the lawn, is it?
Violation of our Constitutional rights. Yea, good one!
You be sure to let us all know when you find a court that will hear that case.
Also, that was a nice use of a sockpuppet to set up a strawman argument in the preceeding post. Got that propaganda machine cranking up, do ya? Be sure to spread it on real thick now.
#29
totally louche
Joined: Oct 2004
Posts: 18,023
Likes: 12
From: A land that time forgot
Bikes: the ever shifting stable loaded with comfortable road bikes and city and winter bikes
John, how does that help the original poster with his riding thru traffic signals that don't sense bikes? Do you still ride much? Do you have any practical, reality based advice for the original poster, or do you want to pontificate about your advocacy from 'many, many years ago?'
I'd say the original poster needs to ADAPT to his riding environment. some of the 'VC crewe' want him to wait for other traffic to trigger the signal, and the ADAPTIVE advice is to come up with reality based solutions to signals failing to detect bikes.
1)stop, then proceed when clear.
2)push the walk button to turn the signal.
3)right and left and thru again.
4) wait for car traffic to trigger the signals.
5) talk to your local roads department to see about adjusting the sensors (won't help on your ride; might help in the future at some point, maybe not)
THESE are the real time, adaptive solutions to signals that fail to detect bikes.
I'd say the original poster needs to ADAPT to his riding environment. some of the 'VC crewe' want him to wait for other traffic to trigger the signal, and the ADAPTIVE advice is to come up with reality based solutions to signals failing to detect bikes.
1)stop, then proceed when clear.
2)push the walk button to turn the signal.
3)right and left and thru again.
4) wait for car traffic to trigger the signals.
5) talk to your local roads department to see about adjusting the sensors (won't help on your ride; might help in the future at some point, maybe not)
THESE are the real time, adaptive solutions to signals that fail to detect bikes.
#30
Senior Member
Joined: Mar 2007
Posts: 4,071
Likes: 0
Originally Posted by Bekologist
John, how does that help the original poster with his riding thru traffic signals that don't sense bikes? Do you still ride much? Do you have any practical, reality based advice for the original poster, or do you want to pontificate about your advocacy from 'many, many years ago?'
I'd say the original poster needs to ADAPT to his riding environment. some of the 'VC crewe' want him to wait for other traffic to trigger the signal, and the ADAPTIVE advice is to come up with reality based solutions to signals failing to detect bikes.
1)stop, then proceed when clear.
2)push the walk button to turn the signal.
3)right and left and thru again.
4) wait for car traffic to trigger the signals.
5) talk to your local roads department to see about adjusting the sensors (won't help on your ride; might help in the future at some point, maybe not)
THESE are the real time, adaptive solutions to signals that fail to detect bikes.
I'd say the original poster needs to ADAPT to his riding environment. some of the 'VC crewe' want him to wait for other traffic to trigger the signal, and the ADAPTIVE advice is to come up with reality based solutions to signals failing to detect bikes.
1)stop, then proceed when clear.
2)push the walk button to turn the signal.
3)right and left and thru again.
4) wait for car traffic to trigger the signals.
5) talk to your local roads department to see about adjusting the sensors (won't help on your ride; might help in the future at some point, maybe not)
THESE are the real time, adaptive solutions to signals that fail to detect bikes.
#31
totally louche
Joined: Oct 2004
Posts: 18,023
Likes: 12
From: A land that time forgot
Bikes: the ever shifting stable loaded with comfortable road bikes and city and winter bikes
Originally Posted by John Forester
Many years ago, I went round and round with them on that.....
John, your advice is to treat the unworking signal as a stop sign. but the signal DOES work, it just doesn't detect bikes. so to treat it like a stop sign, the OP might be breaking the law in his state (he would be where I ride), which he DOESN'T want to do, as per his post.
so should the OP break the law?
wait for traffic to trigger the signal?
use the pedestrian trigger?
pull a right and U and back again?
which of these ADAPTIVE cycling methods should the dogmatic adherents to VC do? the OP wants to know.
You're advocating the OP break the law for expediency. that doesn't sound very vehicular.
#32
Arizona Dessert

Joined: Jun 2004
Posts: 15,029
Likes: 2,170
From: AZ
Bikes: Cannondale SuperSix, Lemond Poprad. Retired: Jamis Sputnik, Centurion LeMans Fixed, Diamond Back ascent ex
If I am at an intersection, lined up properly on inductive sensor and it doesn't trigger for me, that is a non-functional signal and I treat it as a stop sign.
This case has happened to me only for left turn signals. If the light goes thru a complete cycle and never gives a left green (red left arrow stays lit). I wait until thru traffic has a green and make a left, yielding to oncomming traffic.
There is no way I'd try and scoot over 3 lane of traffic to get to cross walk button push, scoot back and make a left.
Al
This case has happened to me only for left turn signals. If the light goes thru a complete cycle and never gives a left green (red left arrow stays lit). I wait until thru traffic has a green and make a left, yielding to oncomming traffic.
There is no way I'd try and scoot over 3 lane of traffic to get to cross walk button push, scoot back and make a left.
Al
#34
Arizona Dessert

Joined: Jun 2004
Posts: 15,029
Likes: 2,170
From: AZ
Bikes: Cannondale SuperSix, Lemond Poprad. Retired: Jamis Sputnik, Centurion LeMans Fixed, Diamond Back ascent ex
Originally Posted by Bekologist
Me too, Al. that's very adaptive of you.

Al
#35
steel lover
Joined: Apr 2007
Posts: 1,316
Likes: 0
From: Houston
Bikes: Bianchi Alloro, Miyata 710, Fuji Espree Fixie convert
I've heard of several systems/devices for use on motorcycles for this same issue.
A quick search returned this on... no dimensions though...
https://cgi.ebay.com/ebaymotors/Signa...QQcmdZViewItem
Some require being wired to an electric source... the one above does not.
apparently, here is that companies website...
https://www.signalsorcerer.com/
They do advertise use on bicycles
The G-4 is...
• Size: 4” x 1” x .375”
• Tough ABS Housing
• Weighs the same as a cell phone
• D.O.T. /EPA Compliant
• Lifetime Power Supply
• Installation: 3-Minutes
• No wiring
• No tools
SS-1 is....
• Lifetime Power Supply
• Bright Nickel Finish
• 3/32" tall x 5/32" wide x 2" long
• Weighs less than 1/2 oz.
• #1 Gift for Motorcyclists
• SAVES Time & Fuel
• Keeps Bicyclists SAFE and Legal
• Works on All Vehicles
A quick search returned this on... no dimensions though...
https://cgi.ebay.com/ebaymotors/Signa...QQcmdZViewItem
Some require being wired to an electric source... the one above does not.
apparently, here is that companies website...
https://www.signalsorcerer.com/
They do advertise use on bicycles

The G-4 is...
• Size: 4” x 1” x .375”
• Tough ABS Housing
• Weighs the same as a cell phone
• D.O.T. /EPA Compliant
• Lifetime Power Supply
• Installation: 3-Minutes
• No wiring
• No tools
SS-1 is....
• Lifetime Power Supply
• Bright Nickel Finish
• 3/32" tall x 5/32" wide x 2" long
• Weighs less than 1/2 oz.
• #1 Gift for Motorcyclists
• SAVES Time & Fuel
• Keeps Bicyclists SAFE and Legal
• Works on All Vehicles
#36
Senior Member
Joined: Mar 2007
Posts: 4,071
Likes: 0
Originally Posted by Bekologist
who's being rhetorical...?
John, your advice is to treat the unworking signal as a stop sign. but the signal DOES work, it just doesn't detect bikes. so to treat it like a stop sign, the OP might be breaking the law in his state (he would be where I ride), which he DOESN'T want to do, as per his post.
so should the OP break the law?
wait for traffic to trigger the signal?
use the pedestrian trigger?
pull a right and U and back again?
which of these ADAPTIVE cycling methods should the dogmatic adherents to VC do? the OP wants to know.
You're advocating the OP break the law for expediency. that doesn't sound very vehicular.
John, your advice is to treat the unworking signal as a stop sign. but the signal DOES work, it just doesn't detect bikes. so to treat it like a stop sign, the OP might be breaking the law in his state (he would be where I ride), which he DOESN'T want to do, as per his post.
so should the OP break the law?
wait for traffic to trigger the signal?
use the pedestrian trigger?
pull a right and U and back again?
which of these ADAPTIVE cycling methods should the dogmatic adherents to VC do? the OP wants to know.
You're advocating the OP break the law for expediency. that doesn't sound very vehicular.
#37
Originally Posted by oneredstar
I ride as a VC most of the time, but I always get frustrated at the lights at intersections. The lights are weight sensitive, so for the most part they only change if a car is waiting, or if a pedestrian pushes the button to cross the street.
I am curious how other VC's get around this? Maybe your city does not have a set up like this. Maybe you just wait. But if I was to wait at an intersection I could be sitting there 5 minutes before another car pulls up and triggers the light to switch.
I am curious how other VC's get around this? Maybe your city does not have a set up like this. Maybe you just wait. But if I was to wait at an intersection I could be sitting there 5 minutes before another car pulls up and triggers the light to switch.
Originally Posted by Bekologist
what you do is ADAPT.
break the law and proceed when clear, go on the walk and push the button, or pull a "right and a u-turn and a thru again"...
break the law and proceed when clear, go on the walk and push the button, or pull a "right and a u-turn and a thru again"...
Originally Posted by oneredstar
I am not really looking for "break the law" advice, it is easy to just go through or push the button, but the whole idea about being VC, at least for me, is that I am following the "laws" of the road.
If the sensor is magnetic, how is my aluminium bike, with aluminium wheels supposed to trip the sensor. Are the few steel parts on my bike enough to work?
If the sensor is magnetic, how is my aluminium bike, with aluminium wheels supposed to trip the sensor. Are the few steel parts on my bike enough to work?
Originally Posted by Bekologist
you get to wait then.
like to get stuck in traffic too?
ADAPT, dude, ADAPT your bicycling.
like to get stuck in traffic too?
ADAPT, dude, ADAPT your bicycling.
Originally Posted by oneredstar
I do ADAPT, or rather I adapt, not sure if yours is an acronym or if you just have issues. I have commuted year round for 10 years now. This is the VC sub-forum, in the advocacy and safety forum, so I thought there may be some advice on safe ways to get around this. I know some cities, like Vancouver, have buttons for cyclist to push for the lights so there is no need to ride on the side walk.
Maybe someone lives in a city with other options, or other systems in place, just curious.
Thanks, noisebeam, I will look into if my city is using the inductive sensors, and if they are I will see if I can position myself to trip the sensor. The nice thing is that most of the lights on my route change immediately when a car pulls up, so if I can trip them it will make things quicker, and safer for me.
Maybe someone lives in a city with other options, or other systems in place, just curious.
Thanks, noisebeam, I will look into if my city is using the inductive sensors, and if they are I will see if I can position myself to trip the sensor. The nice thing is that most of the lights on my route change immediately when a car pulls up, so if I can trip them it will make things quicker, and safer for me.
Originally Posted by Bekologist
oneredstar, since vc is really nothing more than a politically charged term, and that no cyclist actually rides 100 percent VC 100 percent of the time,
I'm giving you MY vc perspective, and that is to adapt to the roadway conditions, push the button, wait then proceed, or pull a 'right and u and back again'.
adapt and ride. vc is a technique for general adherence, not a dogma requiring 100 percent adherence.
In fact, recently, some of the rabid vc in here- HH, Kali- were making apologist alludes to how they know NOBODY that rides 'vc' 100 percent of the time.
adapt, dude, adapt.
I'm giving you MY vc perspective, and that is to adapt to the roadway conditions, push the button, wait then proceed, or pull a 'right and u and back again'.
adapt and ride. vc is a technique for general adherence, not a dogma requiring 100 percent adherence.
In fact, recently, some of the rabid vc in here- HH, Kali- were making apologist alludes to how they know NOBODY that rides 'vc' 100 percent of the time.
adapt, dude, adapt.
Originally Posted by rando
Redstar, what I do is push the ped button. I can never figure out where the sensors are.
Originally Posted by kalliergo
The sensors are inductive loops, in which a current is created when an electrical conductor passes through the field. Aluminum bikes and wheels work just fine, if the sensor is properly designed and installed. Many are not.
For an excellent and detailed explanation, see Steve Goodridge's paper:
https://www.humantransport.org/bicycl.../detection.htm
Dealing with this issue usually ends up being part cycling technique and part local politics.
For an excellent and detailed explanation, see Steve Goodridge's paper:
https://www.humantransport.org/bicycl.../detection.htm
Dealing with this issue usually ends up being part cycling technique and part local politics.
Originally Posted by oneredstar
Thank you rando and kalliergo.
Originally Posted by oneredstar
sggoodri, thanks for the great links, I took a quick look at them, but I will read them over tonight and tomorrow on my day off I will see if I can get the to turn.
Originally Posted by John Forester
...Many years ago, I went round and round with them on that, and they would not change. Whether or not they have responded to the social changes since then I don't know, because, in places such as California, the state highway standards supersede the ITTE standard on detection with diagrams and instructions for loop patterns that are intended to detect bicycles. (Don't always succeed, though.)
Originally Posted by Bekologist
who's being rhetorical...?
...John, your advice is to treat the unworking signal as a stop sign. but the signal DOES work, it just doesn't detect bikes. so to treat it like a stop sign, the OP might be breaking the law in his state (he would be where I ride), which he DOESN'T want to do, as per his post.
so should the OP break the law?
wait for traffic to trigger the signal?
use the pedestrian trigger?
pull a right and U and back again?
which of these ADAPTIVE cycling methods should the dogmatic adherents to VC do? the OP wants to know.
You're advocating the OP break the law for expediency. that doesn't sound very vehicular.
...John, your advice is to treat the unworking signal as a stop sign. but the signal DOES work, it just doesn't detect bikes. so to treat it like a stop sign, the OP might be breaking the law in his state (he would be where I ride), which he DOESN'T want to do, as per his post.
so should the OP break the law?
wait for traffic to trigger the signal?
use the pedestrian trigger?
pull a right and U and back again?
which of these ADAPTIVE cycling methods should the dogmatic adherents to VC do? the OP wants to know.
You're advocating the OP break the law for expediency. that doesn't sound very vehicular.
Sounds like you're the only one having trouble communicating with Oneredstar (the OP,) Bek.
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No worries
No worries
#39
Dominatrikes
Joined: Oct 2004
Posts: 4,920
Likes: 0
From: Still in Santa Barbara
Bikes: Catrike Pocket, Lightning Thunderbold recumbent, Trek 3000 MTB.
It's only a minor annoyance when a signal can't be tripped by my bicycle. It's a huge annoyance when it can't be tripped by my motor scooter. Some intersections are too dicey to simply treat it like a stop sign. I've had to park it, get off and run to the crosswalk and push the button, run back and get on before the light changes for me. At one intersection I did have the crossing guard trained to do that for me, however.
#40
Arizona Dessert

Joined: Jun 2004
Posts: 15,029
Likes: 2,170
From: AZ
Bikes: Cannondale SuperSix, Lemond Poprad. Retired: Jamis Sputnik, Centurion LeMans Fixed, Diamond Back ascent ex
Reporting unresponsive lights is an excellent form of results oriented local advocacy with zero fellow cyclist resistance. It may take lots of phone calls and/or a trail of non caring contacts with slow if any results, but with persistence one can get results and the more one reports, the more of an issue it becomes.
Al
Al





