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LRRB

Minnesota Local Road Research Board

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Transportation Research Syntheses

Urban Mailbox Installation Guidance

December 1, 1998 by LRRB

Using a series of dramatic crash-test clips, this video illustrates the potential dangers of mailbox installations on high-speed roadways, and suggests safer, cost-effective alternatives to standard wood posts and other designs that penetrate windshields on impact.

Filed Under: Traffic & Safety, Manuals/Handbooks

Utility Cut Repair: Doing It Right

September 1, 1996 by LRRB

This video explains how using research-tested repair techniques and materials saves money, headaches, and time for both drivers and public agencies. It also serves as a educational refresher for maintenance staff.

Filed Under: Traffic & Safety, Videos

Traffic Control: What Works?

September 1, 1996 by LRRB

This video discusses how engineers develop reasonable, research-based traffic control strategies and apply engineering judgment to select speed control devices.

Filed Under: Traffic & Safety, Videos

What is the LRRB?

September 1, 1995 by LRRB

A short look at what the Minnesota Local Road Research Board does, and how it benefits city and county engineers, officials, and citizens.

Filed Under: Administrative, Videos

Roadway Design: Balancing Safety, Environment and Cost

September 1, 1995 by LRRB

This video looks at the issues that must be considered when designing roads in Minnesota, and how approved designs meet these three key issues.

Filed Under: Materials and Construction, Videos

Asphalt Overlays: The Four P’s

October 1, 1994 by LRRB

In this video, meteorologist Mike Fairbourne explains the Four Ps involved in asphalt overlays: planning, preparation, production, and placement.

Filed Under: Materials and Construction, Videos

Seal Coating: A Matter of Science and Skill

October 1, 1993 by LRRB

Quality seal coating requires both science in design and skill in application. This video shows emulsion and aggregate spreaders in action and explains the project management necessary to maintain an efficient seal coating operation.

Filed Under: Materials and Construction, Videos

Asphalt Crack Treatment

March 1, 1993 by LRRB

The video discusses the differences between cracking filling and crack sealing and between routing versus sealing. Computer animation helps illustrate key concepts.

Filed Under: Materials and Construction, Videos

Pavement Repair: Do the Right Thing at the Right Time

September 1, 1991 by LRRB

Using nontechnical terms, pavement material samples and other aids, a moderator explains how engineers gather data on pavement and underlying soils, then discusses the factors considered in making rehabilitation decisions.

Filed Under: Maintenance Operations, Videos

Weather and Loads: The Effect They Have on Roads

January 1, 1991 by LRRB

While focusing on how pavement materials are affected by weather and loading, this video covers the basic concepts of pavement engineering, including fatigue, bearing capacity, and thermal expansion. It is a technical topic, designed for a general audience, with tabletop cross-section models to illustrate principles. Damage caused by overweight vehicle loads is also discussed.

Filed Under: Materials and Construction, Videos

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