Record Display for the EPA National Library Catalog
RECORD NUMBER: 481 OF 1680| Main Title | Effectiveness of Alternative Skid Reduction Measures. Volume I. Evaluation of Accident Rate-Skid Number Relationships. | |||||||||||
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| 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. | |||||||||||
| Year Published | 1978 | |||||||||||
| Report Number | DOT-FH-11-8120; MRI-3824-D; FHWA-RD-79-22; | |||||||||||
| Stock Number | PB80-158454 | |||||||||||
| Additional Subjects | Highways ; Motor vehicle accidents ; Skid resistance ; Urban areas ; Rural areas ; Vehicular traffic ; States(United States) ; Statistical analysis ; Wet pavements ; Accident rates | |||||||||||
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| Collation | 254p | |||||||||||
| Abstract | 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. |