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Thread: Display times for electronic variable message sign

  1. #1
    Cyburbian Plus
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    Display times for electronic variable message sign

    What is a reasonable time interval for it to be displayed before it changes ?

    I am not concerned about Time and Temp signs.
    Oddball
    Why don't you knock it off with them negative waves?
    Why don't you dig how beautiful it is out here?
    Why don't you say something righteous and hopeful for a change?
    From Kelly's Heroes (1970)


    Are you sure you're not hurt ?
    No. Just some parts wake up faster than others.
    Broke parts take a little longer, though.
    From Electric Horseman (1979)

  2. #2

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    Rules of thumb for reading messages on VMS signs from research I did...

    To read a message, it takes approx:

    1 second per word
    2 seconds per unit of information (i.e. "60 mph" or "next exit")

    with an upper limit on a message being about 6-8 seconds for a multiline "screen" full of message.

    Make sure you match this up with how much time motorists actually have to read the sign as they pass by on the road. Speed coupled with font size may be a limiting factor since a driver may not have time to read a very long message since they pass by your sign before they can finish reading.

    It is recommended that any one screen of message make sense in itself if a motorist "tunes in" during the second screen of a two-screen message.

    Hope this helps as a starting point.

    P.S. scrolling has rules of thumb too, in terms of scroll speed for messages.

  3. #3
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    We require that the message screen remain in a static display for a minimum of 5 minutes, which I have found to be fairly common within our area.


    I have seen the range from no limit between changing to up to 48 hours between changes in my research.

  4. #4
    Cyburbian Plan 9's avatar
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    You might want to contact someone in Clark County or Las Vegas, NV. I would have to say they are probably the experts on that kind of sign.

    Also maybe contact the sign companies that put them up. Although they are somewhat biased, they are usually pretty helpful when you ask them for advice.
    "Future events such as these will affect you in the future."

  5. #5
    Cyburbian solarstar's avatar
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    We use a 6-second minimum, and that seems to work fine.

  6. #6
    Cyburbian boiker's avatar
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    We mirror the state DOT. 10 seconds per message, no transition- must be an instantaneous change.
    Dude, I'm cheesing so hard right now.

  7. #7
    Cyburbian ludes98's avatar
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    How would I have the time when I am driving while watching my DVD, texting on my blackberry, and talking on my bluetooth?

    Seriously, digital signs are way too distracting if they show full motion. I would make the interval as long as possible, no scrolling text either.

  8. #8
    Cyburbian zman's avatar
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    0 Seconds. I would recommend dynamite or C4 in the mitigation of such signage....

    But since you asked, we required signs to be displyed for 5 seconds. Of course, that changes on the weekends when Code Enforcement is off duty...
    You get all squeezed up inside/Like the days were carved in stone/You get all wired up inside/And it's bad to be alone

    You can go out, you can take a ride/And when you get out on your own/You get all smoothed out inside/And it's good to be alone
    -Peart

  9. #9
    Cyburbian Plus
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    UPDATE -

    HEADLINE:
    Neighbors hope to pull plug on signs
    Say digital billboards ruin quality of life, are safety risk
    http://www.usatoday.com/printedition...igns05.art.htm

    HIGHLIGHTS: (no pun intended )
    Digital billboards are the latest trend in outdoor advertising, say billboard companies. They are taking hold in cities across the country, even as sign companies, federal regulators and opponents debate the legal status of the technology that makes them possible.

    Basically a color TV screen the size of a typical billboard, 14 feet tall and 48 feet across, digital billboards allow advertisers to project their messages 24 hours a day, while changing ads every eight seconds or so and updating them with the click of a computer key.

    anti-billboard group there called SCRUB, or Society Created to Reduce Urban Blight.
    SCRUB, or Society Created to Reduce Urban Blight website: http://www.urbanblight.org/
    Oddball
    Why don't you knock it off with them negative waves?
    Why don't you dig how beautiful it is out here?
    Why don't you say something righteous and hopeful for a change?
    From Kelly's Heroes (1970)


    Are you sure you're not hurt ?
    No. Just some parts wake up faster than others.
    Broke parts take a little longer, though.
    From Electric Horseman (1979)

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