Pavement Friction in a Program to Reduce Wet Weather Traffic Accidents at the Network Level

Abstract

Approximately 20% of all traffic accidents occur in wet weather conditions. Pavement surface problems, such as lack of skid resistance, probably contributed to a portion of those vehicle accidents on wet pavements. An approach for reducing wet weather accidents was developed. The main feature of the proposed approach is that it uses data from both automated accident and skid data files. The contents of both skid number (SN) and accident files were studied. The related parameters in the skid file were selected, including the skid number, and a group of accident parameters was defined. The skid and accident files were merged to allow for developing a program that identifies “high-risk” locations for treatment. Such locations are expected not only to have high wet weather accidents but also to have experienced a critical number of wet weather accidents. An example is used to illustrate the functionality and effectiveness of the proposed approach and the associated computer program. Accident history was obtained on approximately 500 rural two-lane highway sections over a 3-year period. The total traffic accidents involved was approximately 36,000. A criterion to estimate possible risks was developed, and a system of priority ratings, based on economic analysis, was established to assist in the process of selecting slippery highway sections for maintenance, permitting available funds to be allocated optimally.

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References

Murad

M. M.

A Review of Asphalt Pavement Friction Testing, Safety Requirements, and Their Applications in Design and Maintenance in USA.

International Journal of Pavements, Vol. 3, Number 1–2, 2004, pp. 63–75.

Gramling

W. L.

NCHRP Synthesis of Highway Practice 203: Current Practices in Determining Pavement Condition. TRB, National Research Council, Washington, D.C., 1994.

Haas

, and Hudson

W. R.

. Defining and Serving Clients for Pavements. In Transportation Research Record 1524, TRB, National Research Council, Washington, D.C., 1996, pp. 1–9.

Colony

D. C.

Influence of Traffic Surface Age and Environment on Skid Number. ODOT Job No. 14460(0), University of Toledo, Ohio, January 1992.

NCHRP Synthesis of Highway Practice 291: Evaluation of Pavement Friction Characteristics. TRB, National Research Council, Washington, D.C., 2000.

Anderson

D. A.

, Meyer

W. E.

, and Rosenberger

J. L.

. Development of a Procedure for Correcting Skid-Resistance Measurements to a Standard End-of-Season Value. In Transportation Research Record 1084. TRB, National Research Council, Washington, D.C., 1986, pp. 40–48.

Burchett

J. L.

, and Rizenbergs

R. L.

. Seasonal Variations in the Skid Resistance of Pavements in Kentucky. In Transportation Research Record 788. TRB, National Research Council, Washington, D.C., 1980, pp. 6–14.

Saito

, and Henry

J. J.

. Mechanistic Model for Predicting Seasonal Variations in Skid Resistance. In Transportation Research Record 946. TRB, National Research Council, Washington, D.C., 1983, pp. 29–38.

Flintsch

G. W.

, Luo

, and Al-Qadi

I. L.

. Analysis of the Effect of Pavement Temperature on Frictional Properties of Flexible Pavement Surfaces. Presented at 84th Annual Meeting of the Transportation Research Board, Transportation Research Board of the National Academies, Washington, D.C., 2005.

10.

Ksaibati

, Cole

, and Farrar

. Evaluation of Surface Treatment Practices in United States. In Transportation Research Record 1545, TRB, National Research Council, Washington, D.C., 1996, pp. 26–34.

11.

Cleveland

D. E.

Effect of Resurfacing on Highway Safety. In State of the Art Report 6, TRB, National Research Council, Washington, D.C., 1987, pp. 78–95.

12.

Rollins

J. B.

, and McFarlane

W. F.

. Costs of Motor Vehicle Accidents and Injuries. In Transportation Research Record 1068, TRB, National Research Council, Washington, D.C., 1986, pp. 1–7.

13.

Alghazzawi

M. M.

Pavement Management for Wet Weather Accident Reduction. Ph.D. dissertation. University of Toledo, Ohio, 1994.