Roadway Marks Used For Speeding Tickets

January 12, 2010 at 12:40 am 4 comments

Look at the two white marks highlighted in the photo below.

Radar is not always the best way to catch speeders, especially in open areas where the police can’t hide.

But, radar isn’t the only option, Police can also use these marks to measure how fast you’re going. This pair of marks will be followed by a second pair further down the highway. In the United States, they’re usually a quarter mile apart and in Canada, 500 meters.

An officer in an airplane or unmarked car will use a stopwatch to time your car between the two pairs of marks. The time it takes will give them your average speed between those two markers, and if it’s high enough then they can write you a ticket. In the case of aerial surveillance, the plane will notify police cars waiting on the ground.

Either way, I’d recommend a good radar detector (where legal of course).

Sources: AOL,, City of Ottawa

Photo: dougtone (creative commons)

Entry filed under: Automotive, Demystified. Tags: , , , , , , , , , , , , , .

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4 Comments Add your own

  • 1. Mike  |  January 12, 2010 at 4:58 am

    The problem with radar detectors is they aren’t always reliable. I have used radar on people, obtained a speed, locked them and turned my radar back off and their radar detector didn’t even “flinch”.

    I suppose that the radar detector companies should pay their tickets. LOL

    • 2. Chad  |  January 12, 2010 at 6:41 pm

      Mike, it’s true… some radar detectors are awful. If anybody is in the market for one, I’d recommend something in the Whistler XTR series or the Whistler Pro 78SE.

      This is a review site that does great independent testing of radar detectors and these are some that they recommend too.

      As a cop, how do you feel about radar detectors?

      • 3. Mike  |  January 15, 2010 at 11:26 pm

        I think you’re probably the first person that has actually asked me that. I don’t really have any feelings toward them one way or another. When I was in the Air Force, I worked in Electronic Warfare which is essentially radar jamming equipment. This was a tit for tat game with the enemy. When we would counter their radar, they would counter our counter and so on and so on. IN the end though, the best radar operators could look through all the crap and see where the real signal was.

        The speeding “game” is very much like that. I say if a person has the ability to know were out there before we know they’re there, more power to them. It’s a straight up fact that I’m not going to catch em all. In the end though, even the folks with the best equipment in the world are gonna get nabbed by the experienced operators.

  • 4. Joe L  |  December 26, 2011 at 12:02 am

    One could possibly imagine why anyone would need of a radar detector. It’s primarily for all of you speeders on the road who would like to avoid a big expensive ticket and points. Even if you’re not an excessive speeder, you may even find laser or radar detectors to be useful. We have reviewed he content of this site and find it to be relevant and we’re interested in your content as the owner of a radar detector site ourselves.


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