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I blew a red light

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Australia and New Zealand
Published
4 September 2006
Last activity
5 September 2006
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Duncan
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  1. Ok,

    this morning I blew a red light.

    I did wait for it to go through two complete cycles without giving me a
    green, though.. and then went on a stage when I would've got a green
    arrow turning left (if there was one installed).

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

  2. Duncan said:

    Ok,

    this morning I blew a red light.

    I did wait for it to go through two complete cycles without giving me a
    green, though.. and then went on a stage when I would've got a green
    arrow turning left (if there was one installed).

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    DaveB

  3. Duncan said:

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

    Until it does get fixed (ha!) you can try the trick of laying your bike
    on the road over the loop.

    Graeme

  4. Duncan said:

    Ok,

    this morning I blew a red light.

    I did wait for it to go through two complete cycles without giving me a
    green, though.. and then went on a stage when I would've got a green
    arrow turning left (if there was one installed).

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

    Many traffic lights will have a big box near them, with a phone number
    listed on the box, and an ID number. Call the number, quote the code.
    If that doesn't exist (?!) then call the RTA.

  5. DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

  6. On 2006-09-04, Duncan (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:


    DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

    Does it have to be ferric? Carbon fibre would be conductive, no?

    --
    TimC
    "How should I know if it works? That's what beta testers are for. I only
    coded it." (Attributed to Linus Torvalds, somewhere in a posting)

  7. TimC said:

    On 2006-09-04, Duncan (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:
    DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

    Does it have to be ferric? Carbon fibre would be conductive, no?

    Carbon fibre is not conductive. Adherrants of traditional frame
    materials often dismiss CF bikes as "plastic bikes".

    I have the same problem at a particular intersection on one of my
    rides. Steely trips it no problems but the plastic bike does not.
    I have been known to be a [censored] at this intersection so my sympathy
    is with the OP.

    DeF.

    --
    e-mail: d.farrow@your finger.murdoch.edu.au
    To reply, you'll have to remove your finger.

  8. DeF said:
    TimC said:

    On 2006-09-04, Duncan (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:

    DaveB wrote:

    >What type of frame have you got. I have always had probs with my old alu
    >frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

    Does it have to be ferric? Carbon fibre would be conductive, no?

    Carbon fibre is not conductive. Adherrants of traditional frame
    materials often dismiss CF bikes as "plastic bikes".

    I have the same problem at a particular intersection on one of my
    rides. Steely trips it no problems but the plastic bike does not.
    I have been known to be a [censored] at this intersection so my sympathy
    is with the OP.

    DeF.

    --
    e-mail: d.farrow@your finger.murdoch.edu.au
    To reply, you'll have to remove your finger.

    Glue a rare earth magnet to your riding shoe, that should trip it.

  9. In article <[email hidden]>,

    Graeme Dods said:
    Duncan said:

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

    Until it does get fixed (ha!) you can try the trick of laying your bike
    on the road over the loop.

    I had to do that when I leaned on the side of my clipless that is still
    clipped in... The light did turn green a short while later. 😉
    --

  10. "Duncan" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:


    DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.


    *sigh*
    Trust me, it will only detect your wheels..... won't matter what frame you
    have. If it won't detect your aluminium or steel rims, it ain't working
    properly. If you are riding around of carbon Campy Boras or Zipps, you
    won't be detected, they are a conductor but are actually 'lossy' and confuse
    the loop.
    I don't know if your loops are the same as SA's but you have to be in the
    middle, on the double section of the loop. ie standing in the oil patch.
    Look, here's one prepared earlier:
    http://www.transport.sa.gov.au/safety/road/road_use/cyclists_and_traffic_signals.asp

  11. Duncan said:

    Ok,

    this morning I blew a red light.

    I did wait for it to go through two complete cycles without giving me a
    green, though.. and then went on a stage when I would've got a green
    arrow turning left (if there was one installed).

    This light is on a major cycle route into Sydney, and it doesn't
    recognise me when I stop on the loop; who do I nag to get this sort of
    stuff fixed? RTA?

    There's one light that doesnt work for me on a regular basis despite a steel frame. I ring the number on the control box on a regular basis too and put in a complaint that my 'vehicle' doesnt trip the lights. I dont really expect them to fix it but at least if I get booked I have a litany of complaints about the faulty light recorded in my defense.

    CC

  12. Gemma_k said:

    Trust me, it will only detect your wheels..... won't matter what frame you
    have. If it won't detect your aluminium or steel rims, it ain't working
    properly. If you are riding around of carbon Campy Boras or Zipps, you
    won't be detected, they are a conductor but are actually 'lossy' and confuse
    the loop.

    That makes sense... I was thinking that because they're an inductive
    loop, the detected material needs to be magnetic.. but you are correct:
    it only needs to conduct.

    Still.. a steel or Al frame surely has some effect cf. the rims. The
    loops here are large compared with vertical spacing. Sadly, no
    bike-sized loops on this bit of road.

  13. TimC said:

    On 2006-09-04, Duncan (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:


    DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

    Does it have to be ferric? Carbon fibre would be conductive, no?

    The main roads guy in Perth that responded to my complaint about an
    insufficiently sensitive traffic light sensor asked if I had a carbon
    bike, saying carbon wasn't detectable by the magnetic sensors.

    At any rate, carbon fibre composite is as much plastic binder as carbon
    fibres.

    Travis

  14. "Duncan" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:


    Gemma_k said:

    Trust me, it will only detect your wheels..... won't matter what frame


    you

    Quoted message said:
    Quoted message said:

    have. If it won't detect your aluminium or steel rims, it ain't working
    properly. If you are riding around of carbon Campy Boras or Zipps, you
    won't be detected, they are a conductor but are actually 'lossy' and


    confuse

    Quoted message said:
    Quoted message said:

    the loop.

    That makes sense... I was thinking that because they're an inductive
    loop, the detected material needs to be magnetic.. but you are correct:
    it only needs to conduct.

    I know I'm correct, I work for the people who play with the loops :-P
    I also play with the loops for my own amusement. I ride about on zipps, and
    I know even with an Al frame, I dont' get detected. ;-) I have to lay the
    frame down a bit to get the lights to trigger.

    Quoted message said:

    Still.. a steel or Al frame surely has some effect cf. the rims. The
    loops here are large compared with vertical spacing. Sadly, no
    bike-sized loops on this bit of road.


    You need to park yer bike's rims as close to the wire as possible (look for
    the saw cut). The further away from the wire you are the less chance you'll
    be detected. So if it's a box detector instead of a figure 8, and you're in
    the dead middle of it you're unlikely to be detected.

    The loops here are set to detect bikes. If they're not detecting bikes in
    your state, report them. Unfortunately, you can't set them really really
    sensitive, or the bus in the next lane will trigger then and bugger up the
    system.
    Also remember that if you're on a minor side road, sometimes the phasing is
    set to skip your turn (even if you have been detected).
    And, just being detected and then moving off the loop to the side of the
    road won't help either. You have to stay on the loop, or else it cancels
    the call. It's not like a pedestrian push botton, you have to actually
    still be there for the lights to chage (I wish that was the case, that Peds
    had to hold the button down to get a turn ;-) Less push'n'runs then :-)
    haha
    Gemm

  15. On 2006-09-04, Gemma_k (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:


    "Duncan" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    That makes sense... I was thinking that because they're an inductive
    loop, the detected material needs to be magnetic.. but you are correct:
    it only needs to conduct.

    I know I'm correct, I work for the people who play with the loops :-P
    I also play with the loops for my own amusement. I ride about on zipps, and
    I know even with an Al frame, I dont' get detected. ;-) I have to lay the
    frame down a bit to get the lights to trigger.

    Wouldn't some kind of strain gauge be more reliable?

    Or just a button that you could wheel your bike over 🙂

    Quoted message said:

    Also remember that if you're on a minor side road, sometimes the phasing is
    set to skip your turn (even if you have been detected).
    And, just being detected and then moving off the loop to the side of the
    road won't help either. You have to stay on the loop, or else it cancels
    the call.

    Assuming that the person waiting has run the red?

    --
    TimC
    In the beginning, there was nothing, which exploded.
    -- Terry Pratchett, Lords and Ladies

  16. Travis said:
    TimC said:

    On 2006-09-04, Duncan (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:

    DaveB wrote:

    >What type of frame have you got. I have always had probs with my old alu
    >frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.

    Does it have to be ferric? Carbon fibre would be conductive, no?

    The main roads guy in Perth that responded to my complaint about an
    insufficiently sensitive traffic light sensor asked if I had a carbon
    bike, saying carbon wasn't detectable by the magnetic sensors.

    At any rate, carbon fibre composite is as much plastic binder as carbon
    fibres.

    So, did he say what riders of carbon fibre bikes are supposed to do?

    --
    BrettS

  17. TimC said:

    On 2006-09-04, Gemma_k (aka Bruce)
    was almost, but not quite, entirely unlike tea:

    Quoted message said:

    Also remember that if you're on a minor side road, sometimes the phasing is
    set to skip your turn (even if you have been detected).
    And, just being detected and then moving off the loop to the side of the
    road won't help either. You have to stay on the loop, or else it cancels
    the call.

    Assuming that the person waiting has run the red?

    Not necessarily. They may have either:
    1. Run the red (illegal)
    2. Backed up and changed lanes (legal)
    3. Gone straight ahead from the turn lane instead of turning (illegal)
    4. Turned right while the red arrow was off, without having to wait for
    a green arrow. (legal)

    Though they probably blew the red...

    --
    BrettS

  18. Gemma_k said:

    "Duncan" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:


    DaveB said:

    What type of frame have you got. I have always had probs with my old alu
    frame but not with steel MTB or my OCR2 (whatever that is amde of).

    I suspect this is the problem... the frame's an old giant CFR (carbon
    w/ Al lugs); I guess the BB, spokes & pedals just aren't enough mass of
    ferrous to detect.


    *sigh*
    Trust me, it will only detect your wheels..... won't matter what frame you
    have. If it won't detect your aluminium or steel rims, it ain't working
    properly. If you are riding around of carbon Campy Boras or Zipps, you
    won't be detected, they are a conductor but are actually 'lossy' and confuse
    the loop.
    I don't know if your loops are the same as SA's but you have to be in the
    middle, on the double section of the loop. ie standing in the oil patch.
    Look, here's one prepared earlier:
    http://www.transport.sa.gov.au/safety/road/road_use/cyclists_and_traffic_signals.asp

    The loop at the exit to the garage at work requires me either to ride
    along the edge of the (square) loop or if the direction of ttravel is
    perpendicular WRT the loop wires, stop on the loop and twitch the
    handlebars to make it react[1]. Can you identify where the sensor is?

    best wishes
    james

    [1] Alu rims, alu frame

  19. BrettS said:

    So, did he say what riders of carbon fibre bikes are supposed to do?

    Get a steel bike.

    Travis

  20. Quoted post said:

    =Gemma_k


    SNIP

    Quoted post said:

    I know I'm correct, I work for the people who play with the loops :-P I also play with the loops for my own amusement. I ride about on zipps, and I know even with an Al frame, I dont' get detected. ;-) I have to lay the
    frame down a bit to get the lights to trigger.

    In Townsville QLD it makes no diff weather I am on the steel SS or the alloy roadie. Consistently not detected by certain loops. Proly 95%+ work fine for both bikes.

    Quoted post said:

    You need to park yer bike's rims as close to the wire as possible (look for the saw cut). The further away from the wire you are the less chance you'll be detected. So if it's a box detector instead of a figure 8, and you're in the dead middle of it you're unlikely to be detected.

    Yes thats what I was told by Roads Dept. Look for the loop and ride up into the loop, within about 100mm of a side wire and stop in the middle front of the loop. Sometimes they are hard to see.

    AFIK the loops work on resonance and not magnetic/metal detecting. An object in the loop should be detected it just needs mass. Aparently a sack of spuds in the loop should be detected.

    Quoted post said:

    The loops here are set to detect bikes. If they're not detecting bikes in your state, report them. Unfortunately, you can't set them really really sensitive, or the bus in the next lane will trigger then and bugger up the system.
    Also remember that if you're on a minor side road, sometimes the phasing is set to skip your turn (even if you have been detected). And, just being detected and then moving off the loop to the side of the road won't help either. You have to stay on the loop, or else it cancels
    the call.

    It's not like a pedestrian push botton, you have to actually still be there for the lights to chage (I wish that was the case, that Peds had to hold the button down to get a turn ;-) Less push'n'runs then :-)

    haha
    Gemm

    Dont you hate the Push n run peds, they dont even bother to run here, just saunter off. Bad around the city in the early morning with the drunks walking home from the clubs. At least there walking, not driving.
    Should change the timing so that where possible lights change instantly. That will spoil the game.

    Its a "moral dilema", to blow a red when you see some goose "push n run" and there is no traffic anywhere or do you hang around at the red for nix and you become the goose?

    Cheers
    Hugh

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