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Tip and Question

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Road Cycling
Published
9 August 2005
Last activity
17 August 2005
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TomCAt
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  1. I bought a couple of life vest strobe lights from REI a couple of years ago.
    They are designed for boats, life vests for boats, safety. These things
    give off some serious flashed light, or strobe.

    One day I'm thinking .. I bet this strobe would be perfect for my bicycle.
    First, I attached it to my bicycle trailer. What a flash. Next I tried it
    on the back of the bicycle. Flash Flash Flash. Very bright.

    I already own a couple of the red flashing safety lights that you can buy at
    the local bike shop.

    Is the color of the light important. Does it make any difference if you use
    white strobe or red flash on the back of your bicycle.

    My main objective is being seen. Period. I want the guy in the car to
    avoid me. Red, White, Green....

    Just don't run me down.

    Input .......... ?????

  2. TomCAt said:

    Is the color of the light important. Does it make any difference if you
    use white strobe or red flash on the back of your bicycle.

    Most countries and localities require red only. Some don't allow
    flashing--Germany for example. Use the white up front.

    Sounds like overkill--a good LED taillight with four bulbs and fresh
    batteries should be enough for anyone--or one small blinky and one small
    steady. Plus reflectors of course.

    I like a white cateye LED up front, but I keep it on constant
    beam--connotes vehicle more than a flashing light imho.

  3. In article <[email hidden]>,

    maxo said:
    TomCAt said:

    Is the color of the light important. Does it make any difference if you
    use white strobe or red flash on the back of your bicycle.

    Most countries and localities require red only.

    More important: Because of this, drivers who see non-red will assume
    they're in front of you and not behind you. So stick with red for
    the back.

    Quoted message said:

    Some don't allow
    flashing--Germany for example.

    Ontario as well. (Unless you're a school bus, or an emergency vehicle,
    or a law law enforcement vehicle, or they're your four-way flashers.)

    I find solid is no worse for visibility and a lot less annoying once
    I know something's there than flashing, in any case. (I can't stand
    riding behind a red blinkylight.)

    dave

    --
    Dave Vandervies [email hidden]
    So are you saying main() returns int?
    You really should be more clear next time.
    --Daniel Fox in comp.lang.c

  4. TomCAt said:

    I bought a couple of life vest strobe lights from REI a couple of years ago.
    They are designed for boats, life vests for boats, safety. These things
    give off some serious flashed light, or strobe.

    One day I'm thinking .. I bet this strobe would be perfect for my bicycle.
    First, I attached it to my bicycle trailer. What a flash. Next I tried it
    on the back of the bicycle. Flash Flash Flash. Very bright.

    I already own a couple of the red flashing safety lights that you can buy at
    the local bike shop.

    Is the color of the light important. Does it make any difference if you use
    white strobe or red flash on the back of your bicycle.

    My main objective is being seen. Period. I want the guy in the car to
    avoid me. Red, White, Green....

    Just don't run me down.

    Input .......... ?????

    What you describe sound like rescue strobes. If that's what they are
    they are far too bright to mount on the rear of any vehicle, bicycle or
    otherwise. Why would you think you are safer by shining a blindingly
    bright light into the eyes of approaching drivers?
    The color is important as well. Most States' traffic codes specify that
    no vehicle be equipped with any white light that is visible to the rear
    except for lights that are only operable when the vehicle is backing
    up.

    Regards,
    Bob Hunt

  5. (Dave Vandervies) said:

    In article <[email hidden]>,

    maxo said:
    TomCAt said:

    Is the color of the light important. Does it make any difference if you
    use white strobe or red flash on the back of your bicycle.

    Most countries and localities require red only.

    More important: Because of this, drivers who see non-red will assume
    they're in front of you and not behind you. So stick with red for
    the back.

    Even a German driver in Ontario could figure out that a light (any
    color) in the rear view means 'vehicle behind', and if the light is
    seen thru the wondsheild it means 'vehicle ahead'.

    The color might mislead as to which direction it is facing and
    traveling though.

    Quoted message said:


    Quoted message said:

    Some don't allow
    flashing--Germany for example.

  6. TomCAt said:

    Is the color of the light important.

    The cyclists I know who use xenon strobes all recommend and use amber
    lenses.

    RFM

  7. TomCAt said:

    I bought a couple of life vest strobe lights from REI a couple of years
    ago. They are designed for boats, life vests for boats, safety. These
    things give off some serious flashed light, or strobe.

    Quoted message said:

    One day I'm thinking .. I bet this strobe would be perfect for my bicycle.
    First, I attached it to my bicycle trailer. What a flash. Next I tried it
    on the back of the bicycle. Flash Flash Flash. Very bright.


    <SNIP>

    Quoted message said:

    My main objective is being seen. Period. I want the guy in the car to
    avoid me. Red, White, Green....

    I had a strobe (Night Ryder brand IIRC) in back, plus a 7-LED REI
    blinkie. Went for a ride with my son, and he observed that the blinkie
    was more noticable than the strobe (though yours may be different).
    Happily, the strobe's cheap plastic mounting screw broke soon after that
    when I hit a pothole. I replaced it with Cateye's latest, a 10-LED model
    with two banks of five diodes, three on each facing aft and one each on
    each side. I run all 17 LED's in blinking mode, which creates quite an
    effect as the flashes go in and out of phase. Drivers passing me at night
    give me far more leeway than drivers passing me in the daytime.
    Oh, and stick with red in back. White or yellow in front.

    Bill

    ------------------------------------
    | There oughta be limits to Freedom. |
    | -- George W. Bush |
    ------------------------------------

  8. In article <[email hidden]>,

    Michael K none@ said:

    [email hidden] (Dave Vandervies) wrote:

    Quoted message said:
    Quoted message said:

    More important: Because of this, drivers who see non-red will assume
    they're in front of you and not behind you. So stick with red for
    the back.

    Even a German driver in Ontario could figure out that a light (any
    color) in the rear view means 'vehicle behind', and if the light is
    seen thru the wondsheild it means 'vehicle ahead'.

    Well, yeah. But are *you* ahead of or behind *that* vehicle?

    Quoted message said:

    The color might mislead as to which direction it is facing and
    traveling though.

    That was what I said. Putting a white light on the back of your bike
    means people will assume you know exactly where they are all the time,
    but red tells them they're behind you, which means you'll be working with
    "the guy behind me was there last time I checked" most of the time.

    dave

    --
    Dave Vandervies [email hidden]

    [T]he program's running time will be reduced by ONE WHOLE MILLISECOND! WOW!
    --Eric Sosman in comp.lang.c

  9. (Dave Vandervies) said:
    Quoted message said:
    Quoted message said:

    More important: Because of this, drivers who see non-red will assume
    they're in front of you and not behind you. So stick with red for
    the back.

    Even a German driver in Ontario could figure out that a light (any
    color) in the rear view means 'vehicle behind', and if the light is
    seen thru the wondsheild it means 'vehicle ahead'.

    Well, yeah. But are *you* ahead of or behind *that* vehicle?

    Same answer - if I have to look behind me to see them, they are well,
    behind me.

    But I agree, red on front or white on back is dumb.

  10. In article <[email hidden]>,

    Michael K none@ said:
    (Dave Vandervies) said:
    Quoted message said:

    >More important: Because of this, drivers who see non-red will assume
    >they're in front of you and not behind you. So stick with red for
    >the back.

    Even a German driver in Ontario could figure out that a light (any
    color) in the rear view means 'vehicle behind', and if the light is
    seen thru the wondsheild it means 'vehicle ahead'.

    Well, yeah. But are *you* ahead of or behind *that* vehicle?

    Same answer - if I have to look behind me to see them, they are well,
    behind me.

    Yes, they're behind you. But *are* *you* *behind* *them*? How do
    you know?

    dave
    (are you doing this on purpose?)

    --
    Dave Vandervies [email hidden]
    Oddly enough, he can be difficult to work with and has two annoying habits:
    being right most of them time, and admitting it when he's not.
    --Andrew Dalgleish in the scary devil monastery

  11. You seem to have a problem understanding other people's correct
    grammar.

    Be careful with how the OP used the words "they" and "you". His post
    means something very different from how you interpreted it.

    Austin

  12. AustinMN said:

    You seem to have a problem understanding other people's correct
    grammar.

    Be careful with how the OP used the words "they" and "you". His post
    means something very different from how you interpreted it.

    How ironic that your post makes absolutely no sense whatsoever since there's
    no clue as to whom it's directed or what he or she said (and what it was
    about).

    Bravo!

  13. (Dave Vandervies) said:

    In article <[email hidden]>,

    Michael K none@ said:
    (Dave Vandervies) said:

    >>More important: Because of this, drivers who see non-red will assume
    >>they're in front of you and not behind you. So stick with red for
    >>the back.
    >
    >Even a German driver in Ontario could figure out that a light (any
    >color) in the rear view means 'vehicle behind', and if the light is
    >seen thru the wondsheild it means 'vehicle ahead'.

    Well, yeah. But are *you* ahead of or behind *that* vehicle?

    Same answer - if I have to look behind me to see them, they are well,
    behind me.

    Yes, they're behind you. But *are* *you* *behind* *them*? How do
    you know?

    If they are behind me - light in the rear view - then I am in front
    of them and moving away from them, not much else matters.

    If the driver sees a light ahead then, in all cases, he (the driver)
    is behind the bike (which is ahead of him). Based on a knucklehead
    with a white rear light or a red front light, he might make the wrong
    assumption as to the *direction* the bike is traveling, but since most
    cars travel faster than most bikes he is still approaching a bike.

  14. Michael K said:


    If the driver sees a light ahead then, in all cases, he (the driver)
    is behind the bike (which is ahead of him). Based on a knucklehead
    with a white rear light or a red front light, he might make the wrong
    assumption as to the *direction* the bike is traveling, but since most
    cars travel faster than most bikes he is still approaching a bike.

    This is true, but the closing speed will be wildly different depending on
    whether the cyclist is a knucklehead or not. Assume a cyclist moving at 15
    MPH and a motorist at 30 MPH.

    A. Same direction of travel: motorist closes with a relative speed
    of 15 MPH.
    B. Different directions of travel: motorist closes with a relative
    speed of 45 MPH.

    Assuming A (red taillight ahead) when B is the case (knucklehead put the
    red light on the front) means one third of the expected reaction time.

    Reid

  15. Bill Sornson said:
    AustinMN said:

    You seem to have a problem understanding other people's correct
    grammar.

    Be careful with how the OP used the words "they" and "you". His post
    means something very different from how you interpreted it.

    How ironic that your post makes absolutely no sense whatsoever since there's
    no clue as to whom it's directed or what he or she said (and what it was
    about).

    Bravo!

    Try using a threaded viewer.

    Austin

  16. AustinMN said:
    Bill Sornson said:
    AustinMN said:

    You seem to have a problem understanding other people's correct
    grammar.

    Be careful with how the OP used the words "they" and "you". His
    post means something very different from how you interpreted it.

    How ironic that your post makes absolutely no sense whatsoever since
    there's no clue as to whom it's directed or what he or she said (and
    what it was about).

    Bravo!

    Try using a threaded viewer.

    I use one. However, your reply appeared "alone" beneath a slew of posts,
    and it wasn't clear which one it addressed.

    (For example, if you waited 2 or 3 days and then just wrote "Try using a
    threaded viewer" without quoting me, the /average reader/ would have no clue
    WTH you were talking about -- especially if there'd been a number of replies
    since then.)

    It was only the irony of you lecturing someone else on clarity and
    comprehension that moved me to comment. <eg>

  17. Usenet Cop BS prevaricated:

    Quoted message said:

    It was only the irony of you lecturing someone else on clarity and
    comprehension that moved me to comment.

    Uh huh. Right. I bet more often than not your posts are [censored] at
    someone about how they posted.

    How ironic that my post about your posting would be about you posting
    about someone else's posting.

    Bill, you rock my world! Please, do me a favor and post a post about
    my post about your posting about you posting about someone else's
    posting.

    App

  18. appkiller said:

    Usenet Cop BS prevaricated:

    Quoted message said:

    It was only the irony of you lecturing someone else on clarity and
    comprehension that moved me to comment.

    Uh huh. Right. I bet more often than not your posts are [censored] at
    someone about how they posted.

    How ironic that my post about your posting would be about you posting
    about someone else's posting.

    Bill, you rock my world! Please, do me a favor and post a post about
    my post about your posting about you posting about someone else's
    posting.

    Who are you?

  19. Who are you?

    (See, Richard Lick, it IS stupid!)

  20. But, why, Bill, why do you care? If it ain't useful, ignore it. Ye
    gods, man, you can manage to ignore gdaniels, why can't you ignore
    other purveyors of useless babble? There's plenty of value out there
    that you could be busying yourself with.

    But you seem to have a need to obsess over this. And I obsess over
    your obsession. I'm worried about you. Maybe you need to take a
    timeout from usenet.

    And just because it's stupid doesn't mean you need to point it out.
    Unless it makes you feel better. Are you a victim of low usenet
    self-esteem?

    Caringly (and without quoting, just for you!),

    Richard, Usenet Cop Cop

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