Record Display for the EPA National Library CatalogRECORD NUMBER: 2 OF 9
|Main Title||Effectiveness of Alternative Skid Reduction Measures. Volume I. Evaluation of Accident Rate-Skid Number Relationships.|
|Author||Blackburn, R. R. ; Harwood, D. W. ; St. John, A. D. ; Sharp, M. C. ;|
|CORP Author||Midwest Research Inst., Kansas City, MO.;Federal Highway Administration, Washington, DC.|
|Report Number||DOT-FH-11-8120; MRI-3824-D; FHWA-RD-79-22;|
|Additional Subjects||Highways ; Motor vehicle accidents ; Skid resistance ; Urban areas ; Rural areas ; Vehicular traffic ; States(United States) ; Statistical analysis ; Wet pavements ; Accident rates|
Relationships were developed between wet-pavement accident rate and skid number for various combinations of highway type, area type (urban/rural) and traffic volume. Accident rate, skid number and related data were collected for two one-year periods on 428 highway sections located in 16 states. An extensive statistical analysis of the data was conducted using matched-pair comparisons, regression analysis and analysis of covariance. The analysis found a small, but statistically significant, influence of skid number on wet-pavement accident rate. A linear relationship with skid number explained the variation in wet-pavement accident rate as well, or better, than any simple logarithmic or polynomial function.