Calibration of weigh-in-motion systems.

Cover title.

The effect of truck size and weight on accident experience and traffic operations. Volume III: accident experience of large trucks. Final report.

Federal Highway Administration, Washington D.C.

Some measures of accessibility of large trucks to the Texas highway system. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

Screening to identify large truck potential blackspots : methodological issues and concerns

1. Overview of hotspot identification (HSID)methods 2. Challenges with HSID 3. Bringing crash severity into the ‘mix’ 4. Case Study: Truck Involved Crashes in Arizona 5. Conclusions • Heavy duty trucks have different performance envelopes than passenger cars and have more difficulty weaving, accelerating, and braking • Passenger vehicles have extremely limited sight distance around trucks • Lane and shoulder widths affect truck crash risk more than passenger cars • Using PDOEs to model truck crashes results in a different set of locations to examine for possible engineering and behavioral problems • PDOE models point to higher societal cost locations, whereas frequency models point to higher crash frequency locations • PDOE models are less sensitive to unreported crashes • PDOE models are a great complement to existing practice

Real-World Performance of Longitudinal Barriers Struck by Large Trucks

Outside of relatively limited crash testing with large trucks, very little is known regarding the performance of traffic barriers subjected to real-world large truck impacts. The purpose of this study was to investigate real-world large truck impacts into traffic barriers to determine barrier crash involvement rates, the impact performance of barriers not specifically designed to redirect large trucks, and the real-world performance of large-truck-specific barriers. Data sources included the Fatality Analysis Reporting System (2000-2009), the General Estimates System (2000-2009) and 155 in-depth large truck-to-barrier crashes from the Large Truck Crash Causation Study. Large truck impacts with a longitudinal barrier were found to comprise 3 percent of all police-reported longitudinal barrier impacts and roughly the same proportion of barrier fatalities. Based on a logistic regression model predicting barrier penetration, large truck barrier penetration risk was found to increase by a factor of 6 for impacts with barriers designed primarily for passenger vehicles. Although large-truck-specific barriers were found to perform better than non-heavy vehicle specific barriers, the penetration rate of these barriers were found to be 17 percent. This penetration rate is especially a concern because the higher test level barriers are designed to protect other road users, not the occupants of the large truck. Surprisingly, barriers not specifically designed for large truck impacts were found to prevent large truck penetration approximately half of the time. This suggests that adding costlier higher test level barriers may not always be warranted, especially on roadways with lower truck volumes.

Further investigation of traffic operations on two-lane, two-way rural highways. Research summary. Final report.

Federal Highway Administration, Washington, D.C.

The effect of truck size and weight on accident experience and traffic operations. Volume 1: executive summary. Final report.

Federal Highway Administration, Washington, D.C.

The effect of truck size and weight on accident experience and traffic operations. Volume II: traffic operations. Final report.

Federal Highway Administration, Washington, D.C.

An electronic surveillance and control system for traffic management of the Borman expressway. Final report.

Indiana Department of Transportation, Indianapolis

The effect of truck size and weight on accident experience and traffic operations. Volume IV: truck exposure classification by size and weight. Final report.

Federal Highway Administration, Washington, D.C.

Factors affecting traffic operations on seven-lane cross sections. Final report.

Texas Department of Transportation, Austin

Truck safety : disposition of allegations concerning three safety audits : fact sheet for the chairwoman, Subcommittee on Government Activities and Transportation, Committee on Government Operations, House of Representatives /

"November 1987."

Effects of taper length on traffic operations in construction zones /

Final report; December 1977.