# Thread: PA: Engineering/traffic study for Vascar white lines?

1. ## PA: Engineering/traffic study for Vascar white lines?

I was wondering if there is an engineer/traffic study done before the white lines are painted for Vascar use in PA? Any PA users know this?

2. I'd imagine they would do so. They probably take a survey of how often people speed there, as well as how much traffic is going through. I usually see VASCAR lines in high traffic flow areas where people tend to go fast. It gains more revenue.

3. I wish it was true, many time is the local government who asks their works department to go out and paint the lines.

If you have political connection and think people speed in front of your driveway you too can get lines paint there.

4. What do vascar lines look like? Are they different from the regular dotted white lines?

5. Originally Posted by speederX50
What do vascar lines look like? Are they different from the regular dotted white lines?
Regular dotted white lines signifying lanes run in the direction you are traveling, parallel to the road. Vascar lines are solid, wider lines that run perpendicular to your direction of travel, go across the road "horizontally" and are usually (but not always) accompanied with signs saying "Speed Monitored By Aircraft"

6. VASCAR/Stopwatch lines are the 2 lines that go perpendicular to the roadway (Across the road, not along it). They're at a set interval. When you hit one line, the officer starts the system, and when you hit the second line, he stops the system, and your speed is calculated as an average. It basically uses a physics equation to determine your velocity, which is calculated by using the set distance divided by your time. Basically its V=D/T, where V is your velocity/speed and D is your distance, and T is time.

So say the Vascar lines are 20 meters apart, and it takes you 10 seconds to cover that interval. The computer would calculate your speed as 2meters/second. Of course, the computer would need to convert this to miles per hour, which would end up being about 5MPH.

For the most part, VASCAR is usually only seen in Pennsylvania, where the local LEO's are not allowed to use Radar by state law. In PA, the only time you will see K/Ka band radar is from either the Pennsylvania State Police, or a door opener.

7. ## thx

Thx guys for all the useful information.

8. hmm ok. i know how vascar works but ive just never seen it in action before.

9. Here are my pictures from my VASCAR experience

Give you a little better idea

10. ## saw

I just saw your other post Maestro. Great post man and glad you won. Did you celebrate your winning the case?

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