October 2 - October 6, 2017

Calgary, Alberta, officials are reportedly looking at luminescent paints to help light some rural roadways. Is this a good idea?

Answers Votes
Yes. 50%
Not yet, until the technology is more developed. 35%
No, it'll never work. 15%

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Tagged categories: Coating Materials; Traffic paint

Comment from Michael Halliwell, (10/2/2017, 12:22 PM)

IT might do fine in the summer (for when people are out and about)...but Calgary is a winter city...in the dark of winter, there is only so much light to recharge luminescents. I don't think the tech is quite there yet for use up here in "The Great White North", eh!

Comment from john schultz, (10/2/2017, 4:22 PM)

Reflective coatings or buttons are better suited for this. I have now seen solar recharged LED buttons that incorporate both active light and reflectors at critical intersections.

Comment from Tom Schwerdt, (10/4/2017, 8:44 AM)

I have had several luminescent paints brought to me with claims of overnight use. None of them had a useful amount of luminescence after 6 hours. Sure, if you looked really closely they were technically still glowing - but not at a level useful for a traffic marking.

Comment from Michael Halliwell, (10/4/2017, 11:04 AM)

Tom, that's the critical part...duration. Up here (I'm a few hours north of Calgary), in the dead of winter, we can have as little as 7.25 hours of daylight...6 hours of luminescence won't work with 16 hours of darkness. I applaud the thinking "outside the box", but the reality is that we're nowhere near where we need to be to make this a viable alternative yet.

Comment from Tom Schwerdt, (10/5/2017, 7:53 AM)

Michael - a fair point. I haven't even seen one that will work all night in Texas. At the summer solstice.

Comment from Brian Elliott, (10/5/2017, 11:24 AM)

Being covered with snow would add to the challenge. Calgary still gets snow fairly often, like this week!

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