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Old June 23rd, 2014, 08:08 PM   #9741
FM 2258
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Yes, to wake sleepy drivers up! Bzzzzrrrrrrrrrtttt!!!!!

I remember first seeing this as a kid on IH 25 in New Mexico. Later it got implemented all over Texas.
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Old June 23rd, 2014, 08:13 PM   #9742
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It's also increasingly common in Europe. Along with painted lines that also make a noise if you cross them.

It's safer, but doesn't really solve the issue at hand; distracted driving. Taking your eyes off the road for 2 seconds may not be a problem, but combine that with other activities (changing a CD, hook up your phone, read a text message, looking at a map) and you'll find yourself crossing the lines quite easily.
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Old June 23rd, 2014, 09:45 PM   #9743
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I have also seen these "alert-lines" on city boulevards and major thoroughfares through high pedestrian areas. It is a great idea for both city streets and interstates.
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Old June 23rd, 2014, 10:39 PM   #9744
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Quote:
Originally Posted by Skyline_ View Post
Both left and right emergency lanes have some kind of weirf grill-like lines across the road.
In California, we call them "rumble strips" and like others have said, they are there to alert non-attentive drivers that they have drifted onto the shoulder (left or right).

Caltrans (California's Dept of Transportation) has also placed rumble strips in between the double yellow lines that separate opposing traffic on two-lane highways that have a higher-than-average rate of head-on collisions.
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Old June 23rd, 2014, 10:55 PM   #9745
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I know the term rumble strip, but I didn't know if it could be used for those grooves on the side of the road to wake you up. To me "rumble strip" means a sort of band of noisy, rough pavement directly across the roadway that's meant to draw your attention to a hazard or just make you pay closer attention...what I'm imagining in particular is if you're approaching a school there might be a series of them so you slow down.
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Old June 24th, 2014, 12:57 AM   #9746
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The reflectors for the lane divider obviously make a rather loud noise when driven over, I am assuming to have the same as the the so called "alert lines" or "rumble strips".
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Old June 24th, 2014, 03:09 AM   #9747
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Quote:
Originally Posted by Airman Kris™ View Post
The reflectors for the lane divider obviously make a rather loud noise when driven over, I am assuming to have the same as the the so called "alert lines" or "rumble strips".
The sounds are quite different. Driving over the reflectors makes a thump… thump… thump… thump sound while driving over the rumble strip makes a "BBBRRRRRRRRRRRRRRRRR" sound.
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Old June 24th, 2014, 03:35 AM   #9748
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the sound of your tires disintegrating
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Old June 24th, 2014, 03:37 AM   #9749
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It's not that bad for them. And you don't drive over a rumble strip for long...that's sort of the point. Mais comment dit-on "rumble strip" en français ?
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Old June 24th, 2014, 04:03 AM   #9750
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Quebec calls them "bandes rugueuses" which I think is the correct term, but Ontario has signed them on Hwy 17 as, IIRC, "bandes medianes striées" (striated median band, they are on the centreline on that road) which strikes me as terribly awkward (not very uncommon though on MTO signage for some reason)
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Old June 24th, 2014, 09:08 AM   #9751
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I've seen those grill things used here for as long as I can remember, first it was the paint that was fairly thick in that exact pattern with the same result, but since 1995-ish it's been the actual asphalt tasked with waking you up.
We have them on the center line/divider too, even where it's legal to overtake, I find this a bit annoying at times.
BBRRRRRR
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Old June 24th, 2014, 10:13 AM   #9752
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Quote:
Originally Posted by Skyline_ View Post
Both left and right emergency lanes have some kind of weirf grill-like lines across the road.
A lot of highways in the US have these.
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Old June 24th, 2014, 10:14 AM   #9753
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Quote:
Originally Posted by myosh_tino View Post
Caltrans (California's Dept of Transportation) has also placed rumble strips in between the double yellow lines that separate opposing traffic on two-lane highways that have a higher-than-average rate of head-on collisions.
it's the same in Washington. Haven't seen it anywhere on the east coast.
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Old June 24th, 2014, 09:15 PM   #9754
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Quote:
Originally Posted by myosh_tino View Post
The sounds are quite different. Driving over the reflectors makes a thump… thump… thump… thump sound while driving over the rumble strip makes a "BBBRRRRRRRRRRRRRRRRR" sound.
Yes they do sound different but as I said they still serve the same purpose. The reflectors happen to serve two.
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Old June 26th, 2014, 11:41 AM   #9755
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Gregor I did enjoy the photos! Visit Jackson sometime.
Actually I did stop in Jackson for a few hours. As it was Sunday the capitol building was closed but we visited the old capitol.
I post some non-road pictures of my US travels in the Polish part of Skyscrapercity .
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Old June 26th, 2014, 02:56 PM   #9756
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Quote:
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It's not that bad for them. And you don't drive over a rumble strip for long...that's sort of the point. Mais comment dit-on "rumble strip" en français ?
Bande sonore.
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Old June 26th, 2014, 02:58 PM   #9757
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Merci. Thought that was "soundtrack."
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Old June 27th, 2014, 07:11 PM   #9758
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I-75, Sarasota, FL

Sarasota gets perhaps the biggest DDI in the U.S., with 5 through lanes each way. It will be the first DDI in the state of Florida.

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Old June 27th, 2014, 09:15 PM   #9759
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I-77, Charlotte, NC

NCDOT Signs Contract to Provide Reliable Travel Time Along Heavily Congested I-77

The N.C. Department of Transportation today signed an agreement with Cintra for a public-private-partnership (P3) contract to improve the traffic flow along 26 miles of I-77 in the Charlotte area, one of the most congested roadways in the state. The P3 enables NCDOT to address a critical need and provide immediate travel time reliability along I-77 from Uptown Charlotte to the Lake Norman area that could otherwise not be completed with limited funds.

The state will invest about $88 million dollars and Cintra will secure the remainder of the $655 million to design, build, operate and maintain the managed lanes project in exchange for toll revenue generated from the lanes. This public-private partnership will complete the project within four years instead of the estimated 20 years it would take to secure enough state funding to move forward.

The I-77 project includes converting the current High Occupancy Vehicle (HOV) lanes, which already exist along I-77, and adding capacity to the roadway. The existing HOV lanes and new lanes will be High Occupancy managed lanes that allow free use for eligible carpoolers (three passengers or greater), buses and motorcyclists, while allowing other drivers to pay a toll to use those lanes.

The project will add capacity to I-77 between Brookshire Freeway (Exit 11) in Charlotte and N.C. 150 (Exit 36) in Iredell County. This portion of the I-77 corridor already experiences significant congestion, and projections show a 2-to-3 percent increase in traffic volume is expected every year through 2030.
Press release: https://apps.ncdot.gov/newsreleases/...s.aspx?r=10023
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Old June 27th, 2014, 10:22 PM   #9760
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Here's something different:

http://www.paturnpike.com/news/falcons.aspx

Nice.

(Just went on to get my E-ZPass statement and that was high up on the homepage.)
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