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Crash Base Rates for Intersections in Ohio.
| 题名： | Crash Base Rates for Intersections in Ohio. |
| 作者： | pant, p. d. kashayi, n. |
| 关键词： | intersection collisions,accident rates/ohio, traffic patterns, crash density, detection, accident density, injuries, traffic safety, traffic control devices, signalized intersections, accident risks, accident statistics, driver behavior, law enforcement, mathematical models, regression analysis/ |
| 摘要： | A safety analysis of a specific location requires the knowledge of base crash rates, also known in the literature as expected values, for identifying crash patterns at the study location. Base crash rate models were developed for the following nine crash types: (a) Injury (b) PDO (c) Total (d) Wet (e) Night (f) Rear end (g) Sideswipe (h) Fixed object and (i) Left turn crashes. These models were developed for intersection legs (also called intersection approaches) as the crash behavior of different legs within the same intersection were likely to be different. Base crash rates for the following eight leg types were modeled based on the type of control: (a) Signalized legs at four way signalized intersections (b) Signalized legs at three way signalized intersections (c) No control legs at one way stop controlled intersections (d) Stop controlled legs at one way stop controlled intersections (e) No control legs at two way stop controlled intersections (f) Stop controlled legs at two way stop controlled intersections (g) No control legs at intersections with flashing beacons and (h) Stop controlled legs at intersections with flashing beacons. This study focused on intersections formed by two or more State or US routes. To evaluate the complex interaction among the dependent and independent variables, Automatic Interaction Detection (AID) technique was used. After the completion of AID analysis, stepwise multiple regression technique was used to develop mathematical models for the split groups. / NOTE: Final rept. / Supplementary Notes: Sponsored by Federal Highway Administration, Columbus, OH. Ohio Div. and Ohio Dept. of Transportation, Columbus. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 报告类型： | 科技报告 |
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