PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Download our free Transmission Pipeline Coating Systems eResource Book

Paint and Coatings Industry News

Main News Page


Crafty Markings Could Slow Speeders

Tuesday, October 22, 2013

More items for Program/Project Management

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.

SAFE Systems, Inc.
Portable Dust Collectors for Tough Environments

Trailer and skid-mounted models in numerous sizes, powered by electric and/or diesel. Sloped roofs, multiple dust inlets, high static, dampered fans. Lockable power & drive compartments.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


Sherwin-Williams
Heat-FLex® Hi-Temp 1200

Improved Corrosion
Resistance
Enhanced Durability
Faster Shop Throughput


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.


Armakleen Company, The
ARMEX when nondestructive cleaning is critical

The gentle physical propriety of baking soda but yet aggressive cleaning ability is what makes ARMEX the only choice for nondestructive abrasive blasting.


Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524


Elcometer, Inc.
New Elcometer 456 Coating Thickness Gauge

Best In Class Just Got Better. Technologically Intelligent And Robust. Marvelous Design And Durability. An Earth-Shattering Revolution In Coating Inspection.


Minerals Research & Recovery

HIGH PERFORMANCE ABRASIVES


“Made in the USA!”

Why recycle waste from other countries? Go FASTER, CLEANER, at 1/3 THE COST with MR&R “All-American” Sharpshot®HP!!

WATCH THE VIDEO


Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)

Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design 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
 

© Copyright 2000-2015, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com