Some Random Questions

Topic 26305 | Page 1

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RealDiehl's Comment
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I often see things while driving that I'm curious about. I usually forget about them pretty quickly. A few come to mind now.

1) What is a measured mile? Every now and then I'll see a sign that says something like, "begin measured mile". Not sure what that means or what its purpose is.

2) Why are the insides of tunnels covered in tiles?

3) Is there a reason some stretches of highway are grooved? Sometimes it's a short stretch, sometimes many miles long. There is usually a sign warning of grooved surface ahead.

Maybe y'all can shed a little light on things for me and anyone else who might be wondering about these things.

Rick S.'s Comment
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Wassamatter - bored, or is your google broken?

Rick

PackRat's Comment
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Measured Mile is for enforcement of the speed limit for law enforcement. They can also time you from an aircraft this way.

60 seconds from line to line = 60 mph.

Tiles in tunnels are easier to keep clean and less maintenance on the surface of the walls. Usually the tiles are colored white, which adds more light and visibility.

Grooved pavement is usually to help control and direct water runoff and better traction.

RealDiehl's Comment
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Wassamatter - bored, or is your google broken?

Rick

rofl-3.gifconfused.gif

None of the above, my learned friend. Just my way of being social. Sure, google probably has the answers. However it just feels better getting feedback from a real person. Besides other forum members might enjoy answering trivial questions. Heck! They might be bored and be glad for the opportunity. Lol!

RealDiehl's Comment
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Measured Mile is for enforcement of the speed limit for law enforcement. They can also time you from an aircraft this way.

60 seconds from line to line = 60 mph.

Tiles in tunnels are easier to keep clean and less maintenance on the surface of the walls. Usually the tiles are colored white, which adds more light and visibility.

Grooved pavement is usually to help control and direct water runoff and better traction.

Thank you, sir. Much appreciated.

PackRat's Comment
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No worries.

I looked it up on Google.

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Bruce K.'s Comment
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RD, you are really a good guy.

Okay, measured miles are so aircraft can track your speed and get a patrol car to pull you over for a speeding ticket. Not a big issue for governed speed trucks, but still watch your speed.

Tunnels are tiled so they can be pressure washed, They build up contamination from exhaust emissions and need to be cleaned periodically,

Grooved pavement? I don't know, Maybe someone else can explain?

Pete B.'s Comment
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No worries.

I looked it up on Google.

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Classic.

RealDiehl's Comment
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No worries.

I looked it up on Google.

rofl-1.gifrofl-2.gifrofl-3.gif

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Too funny, Packrat!

Dave S (formerly known as's Comment
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Just in case... 1 mile = 5280 feet.

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