USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Truck Lateral Protective Device Technical Overview

About This Document

This technical overview provides safety and operational considerations for truck lateral protective devices. Truck lateral protective devices are devices designed to keep vulnerable road users (VRUs)—pedestrians, bicyclists, and motorcyclists—from being run over by a large...

Effects of Side Skirts and Wheel Covers on Heavy Trailers

About This Document

National Research Council Canada Prepared for: Transport Canada Road Safety 275 Stater Sl Ottawa, ON

Prepared by: Jeff Patten, P. Eng. Chelsey Laionde, EIT William Mayda, P. Eng. Gordon Poole, P. Eng.

Technical Report April 5, 2012

Truck Lateral Protective Device (LPD) Resources

Note: the term "side guard" is used colloquially throughout this webpage and related materials, but refers to "lateral protective devices" and not to "underride" guards. 

Truck lateral protective devices are vehicle-based safety devices designed to keep pedestrians, bicyclists, and motorcyclists from being run over by a large truck’s rear wheels in a side-impact collision.

The U.S. DOT Volpe Center’s 2020 Reports

The U.S. Department of Transportation (U.S. DOT) Volpe Center published nearly 60 reports and conference papers in 2020 spanning a breadth of transportation topics that advance U.S. DOT’s priorities: safety, infrastructure, innovation, and accountability.

These reports are housed in the National Transportation Library and are listed below by topic areas. Select the linked report titles to preview and download copies of the U.S. DOT Volpe Center’s 2020 transportation resources.

Unconventional Aircraft (UA) Noise Research

The U.S. DOT Volpe Center’s Acoustics Unconventional Aircraft (UA) Noise Research Team, with support from the FAA’s Office of Environment and Energy (AEE), was created to focus on issues relating to the noise and community acceptance of UAs as they begin to enter into the National Airspace System.