Turner-Fairbank Highway Research Center

 
 
 
 

Journal Citations

Many of the studies conducted using HSIS data result in publication in professional journals, conference proceedings, research records, and other peer-reviewed documents.

Title Pub Date Author
Evaluation of Truck Crashes Using a GIS-Based Crash Referencing and Analysis System. David L. Harkey
Investigation of Passing Accidents Using the HSIS Data Base Sep-92 Yusuf M. Mohamedshah
Comparative Performance of Barrier and End Treatment Types Using the Longitudinal Barrier Special St Jan-93 Hunter, W.W., J.R. Stewart, and F.M. Council
Association of Median Width and Highway Accident Rates Oct-93 Mathew W. Knuiman, Forrest M. Council, and Donald W. Reinfurt
Truck Accident Models for Interstates and Two-Lane Rural Roads Oct-93 Yusuf M. Mohamedshah, Jeffrey F. Paniati, and Antoine G. Hobeika
Statistical Evaluation of the Effects of Highway Geometric Design on Truck Accident Involvements Oct-93 Shaw-Pin Miaou and Harry Lum
Estimation of Safety at Two-Way stop-Controlled Inrtersections on Rural Highways Oct-93 James A. Bonneson and Patrick T. McCoy
Modeling Vehicle Accidents and Highway Geometric Design Relationships Dec-93 Shaw-Pin Miaou and Harry Lum
Accident Relationships of Roadway Width on Low-Volume Roads Jan-94 Zegeer, C.V., J.R. Stewart, F.M. Council, and T.R. Neuman
Frequency and Severity of Crashes Involving Roadside Safety Hardware by Vehicle Type Jan-94 John G. Viner, Forrest M. Council, and J. Richard Stewart
Accident Rates Using HSIS Yusuf M. Mohamedshah, and Amy R. Kobls
Comparison of the Safety of Lighting Options on Urban Freeways Michael S. Griffith
Investigation of Highway Work Zone Crashes: What We Know and What We Don't Know Jan-96 Jun Wang, Warren E. Hughes, Forrest M. Council, and Jeffrey F. Paniati
Vehicle-Animal Crashes: An Increasing Safety Problem Aug-96 Warren E. Hughes, A. Reza Saremi, and Jeffrey F. Paniati
Effects of Air Bags on Severity Indices for Roadside Objects Jan-97 Forrest M. Council, Yusuf M. Mohamedshah, and J. Richard Stewart
Role of Adverse Weather in Key Crash Types on Limited-Access: Roadways Implications for Advanced Wea Jan-98 Khattak, A.J., P. Kantor, and F.M. Council
Safety Effects of Cross-section Design on Rural Multi-lane Highways Jan-98 Jun Wang, Warren E. Hughes, and J. Richard Stewart
Investigation of National Highway System Roadways in the Highway Safety Information System States Sep-98 Charles V. Zegeer, Herman F. Huang, J. Richard Stewart, and Carolyn Williams
Effects of a Towaway Reporting Threshold on Crash Analysis Results Sep-98 Charles V. Zegeer, Herman F. Huang, J. Richard Stewart, Ron Pfefer and Jun Wang
Accident Models for Two-Lane Rural Segments and Intersections Sep-98 Andrew Vogt and Joe Bared

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Safety Effects of Horizontal Curve and Grade Combinations on Rural Two-Lane Highways

The safety effects of horizontal curves and grades on rural two-lane highways have been quantified in the American Association of State Highway and Transportation Officials (AASHTO) Highway Safety Manual (HSM), but it was not previously known whether and how the safety performance of horizontal curves and grades interact. Furthermore, there are no established safety effects for crest and sag vertical curves, and it is unknown whether and how the safety performance of crest or sag vertical curves is affected by the presence of horizontal curves.

The objective of this study was to quantify the combined safety effects of horizontal curves and grade combinations and express the results as crash modification factors (CMFs) that can be considered for use in the AASHTO HSM.

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Safety Evaluation of Converting Traffic Signals from Incandescent to Light-Emitting Diodes

Across the Nation, many agencies have been replacing conventional incandescent light bulbs in traffic signals with light-emitting diodes (LED). LEDs are primarily installed to reduce energy consumption and decrease maintenance. In addition, LEDs are expected to last much longer compared with incandescent bulbs and tend to age gradually. However, a recent study revealed several potential problems with LEDs, including their inability to melt snow and issues related to visual discomfort caused by glare at night.

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Safety Evaluation Of Discontinuing Late-Night Flash Operations at Signalized Intersections

During late-night flash (LNF) mode (from late night to early morning hours), traffic signals flash yellow for one road (typically, the major road), requiring caution but no stopping, and flash red for the other road (typically, the minor road), requiring drivers to stop and then proceed through the intersection after yielding to the traffic on the major road. The intent of LNF is to reduce energy consumption and delay during periods of low traffic demand. However, in recent years, many agencies have begun replacing LNF with normal phasing operation because of safety concerns.

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