PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram
Search the site

 

Get the latest FREE eResource Blasting Resource Guide Download Now

Coatings Industry News

Main News Page


Crafty Markings Could Slow Speeders

Tuesday, October 22, 2013

Comment | More

Optical illusions on highway pavement may soon trick motorists into slowing down, Florida transportation officials are hoping.

The illusion uses optical speed bars—thermoplastic tape lines gradually spaced closer together on the road—to make drivers feel like they are going faster than they are, the South Florida Sun-Sentinel reports. The lines are 12 inches wide and 18 inches long.

Florida officials will trial the lines later this year or early next year on a curved stretch of road in Fort Lauderdale.

The project is reportedly still in its design phase, and officials have not determined how long the test will run.

optical speed bars 
Virginia Department of Transportation

Optical speed bars on pavement are designed to make drivers think they are driving faster than they are. Virginia has used both designs pictured. Florida plans to try out the design at left on a curved stretch of road in Fort Lauderdale.

"As is the case with all these types of pilot programs, we want to see test cases that are well-conceived and have a high probability of mitigating or improving the problem," Scott Brunner, Broward County Traffic Engineer, told the Sun-Sentinel.

The Fort Lauderdale road was chosen because residents have complained about dangerous speeding and aggressive driving along the stretch, including vehicles crashing into houses and yards.

A similar technique was tested several years ago at Interstates 4 and 95 near Daytona Beach, FL, with "not much of a difference seen," Florida Department of Transportation spokesman Steve Olson told the newspaper.

FHWA and Other Studies

Optical speed bars are usually used in known accident areas or areas that require a significant reduction in traffic speed, according to the Federal Highway Administration (FHWA).

"As spacing between the bars gradually narrows, drivers sense they have increased speed and will slow down to keep the 4-bar/sec spacing," FHWA says.

Studies in New York, Mississippi and Texas have shown that transverse pavement markings can effectively reduce mean speeds, but their long-term effectiveness is unknown.

A 2007 study by the Virginia Department of Transportation found that optical speed bars decreased speed from one to three miles per hour when placed on a short, two-lane section of hazardous roadway and decreased speed from three to 10 mph when installed across lanes on a major, four-lane undivided highway.

The Pennsylvania Department of Transportation has also experimented with a pavement marking design to alert motorists that they are approaching a curve. Called the "PennDOT Curve Advance Marking," the treatment involves two transverse bars, a SLOW legend, and an arrow indicating the direction of the upcoming curve.

   

Tagged categories: Department of Transportation (DOT); Federal Highway Administration (FHWA); Roads/Highways; Striping

Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
International Bridge Conference
 
2017 International Bridge Conference
 
June 4-8, 2017, National Harbor, Maryland
 

 
SAFE Systems, Inc.
 
SAFE Systems'
Blast Lights &
Deadman Switches
 
Halogen or LED blast lights available with our NEW urethane bumper. Switches available in many colors for color coding your hoses.
 

 
SABRE Autonomous Solutions
 
Safety, Productivity, Quality. Robotic Blasting
 
Learn how this simple to use, field deployed, automatic robot is eliminating hazards in major confined, cluttered and complex surface preparation projects.
 

 
Detail Masters
 
Overspray Removal
 
We offer professional, turnkey service and unparalleled quality!
Our process can save hundreds— even thousands of dollars. It's fast, environmentally safe and 100% guaranteed.
 

 
Sherwin-Williams
 
Sherwin-Williams Oil & Gas App
 
Our coatings and linings expertise available 24/7, allowing you to explore the best Sherwin-Williams solutions for oil refineries, shale drilling sites, and offshore. Android users
click here. Download today!
 

 
US Minerals
 
Hit Harder. Clean Faster.
 
Black Diamond abrasive products are the toughest, most effective blasting media and supply the superior power you need to get any job done.
 

 
Mitsubishi Gas Chemical America
 
Performance Amine 1,3-BAC
 
A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.
 

 
SEMicro Division, M.E. Taylor Engineering, Inc.
 
Coatings Adhesion Testers
 
The PATTI® accurately measures the bond strength between coating & substrate. Outfitted properly, the surface can be rough, porous, or curved & >10K psi strong!
 

 
Carlisle Fluid Technologies
 
Built for Tough Jobs
 
From Epoxies to Urethanes to other high solid coatings, the new Binks Airless 75 delivers a great finish using an ergonomic design. Visit binks.com for more information.
 

 
Blastox/The TDJ Group, Inc.
 
Blastox® - One Step Lead Abatement
 
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!
1(800)-252-7869
 

 
 
 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us