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Minnesota LTAP

Center for Transportation Studies

University of Minnesota

200 Transportation & Safety Building

511 Washington Ave SE

Minneapolis, MN 55455

Phone: 612-626-1077

Fax: 612-625-6381

E-mail: mnltap@umn.edu

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Technology Exchange Header

Fall 2004 Vol. 12 No. 4

Fall 2004 Technology Exchange

New signs flash when deer are near
In 2002, five people were killed in deer-vehicle crashes in Minnesota, and more than 5,500 hits were reported. A research report just published by Mn/DOT describes a promising new approach that one day could help reduce these numbers.

Learn more at Deer Vehicle Crash Information Clearinghouse
Learn about the many possibilities for keeping deer off the hood of your car.

Taconite tailings: a new source of aggregate for roadway construction
A potential new source of stone aggregate materials for road construction and maintenance has been identified by researchers from the University of Minnesota's Natural Resources Research Institute in Duluth.

Truck-weight training a success; more classes on tap
The program educates industry freight shippers, carriers, and public agency personnel on the proper application of Minnesota Commercial Vehicle Weight Laws and enforcement policies.

An engineer inside you?
To help students choose a college major and career path Celeste Baine has dedicated herself to creating resources on engineering careers for students.

County commissioners share views on transportation
Commissioners from four counties shared their views on transportation at the September 1 joint luncheon meeting of the North Central Institute of Transportation Engineers, the Women's Transportation Seminar, and ITS Minnesota.

Maintenance research

Maintenance research
The Mn/DOT Maintenance Operations Research (MOR) unit fulfills the important role of researching and testing new and innovative technologies—technologies that Mn/DOT could potentially use in the near future.

Plow improvements offer many benefits
Early this year, the Mn/DOT Snow Plow Truck Standardization Committee implemented several changes on the new Mn/DOT class 33 and 35 trucks.

Rear-view cameras improve visibility
Mn/DOT Maintenance Operations Research unit has been working in cooperation with the Mn/DOT Safety Offices for the past several years to evaluate rear-vision monitor systems.

Chromatic perception affects snowplow visibility
When plows are operating in blowing snow, their orange color may actually make it harder for other drivers to judge their movement. University researchers plan to continue their work on chromatic motion perception in order to improve driving safety.

Lodahl to direct Mn/DOT Research Services
Sue Lodahl, a member of the Minnesota LTAP Steering Committee, has been named the new director of the Research Services section in Mn/DOT's Office of Investment Management.

LRRB Update

Report explores causes of top-down cracking
What causes top-down cracking isn't certain, but research funded by the Minnesota Local Road Research Board provides some clues.

Taconite may be option for deicing, pothole patching
David M. Hopstock and Lawrence M. Zanko, University of Minnesota Duluth

Pavement researchers model cold-weather cracking
While the effects of low-temperature cracking are obvious, the details of how asphalt pavements respond to low temperatures have proven difficult to model accurately.

Safety

Driver error, animal crossing most common causes of rural crashes
New research sponsored by the LRRB and Mn/DOT indicates that the most common causes for crashes on rural roads fall into two main categories: driver error and animal crossings.

FHWA Web site promotes ways to protect wildlife
A new Web site, designed for the transportation community and for the traveling public, highlights easy ways of reducing highway impacts on wildlife.

Innovative ITS technology to promote rural intersection safety
The Intelligent Transportation Systems Institute is tackling the problem of rural intersection crashes with its innovative Rural Intersection Decision Support (IDS) research program.

'Red-red' traffic lights: are they safer?
All-red clearance intervals, in which all directions of traffic at an intersection receive a red light for a period ranging from 0.5 to 3.0 seconds, are perceived by many to have a safety benefit. However, past research studying their effectiveness has been divided.

FHWA offers pedestrian safety guidelines for intersections
To improve intersection safety for pedestrians safety, the Federal Highway Administration's Office of Safety created a comprehensive public awareness campaign targeting both motorists and pedestrians.

Workshops & training

Coming LTAP Attractions

Learn how to control traffic in work zones—and much more
The Northland Chapter of the American Traffic Safety Services Association will be holding its 13th annual "How To" training conference March 22–23, 2005, in Fargo.

CTAP to offer work-zone safety training
by Kathy Schaefer

High-quality service is theme of MPWA Fall Conference
The Minnesota Public Works Association Fall Conference will be held November 17–19, 2004, in Brooklyn Center.

Public Works Certificate Program offered
The certificate provides education and tools that enable workers to advance their careers in public works.

Check out Salt Institute's e-newsletter
The Salt Institute, a non-profit association of salt producers, publishes a quarterly e-newsletter.

Information Services

LTAP Training & Events Calendar
For an up-to-date list of events in Minnesota, please see the LTAP training and events calendar

The Shelf