原文传递
PROVINCIAL-WIDE TRAVEL SPEED AND TRAFFIC SAFETY STUDY IN SASKATCHEWAN.
| 题名： | PROVINCIAL-WIDE TRAVEL SPEED AND TRAFFIC SAFETY STUDY IN SASKATCHEWAN. |
| 作者： | Liu-GX; Popoff-A |
| 关键词： | SPEED-LIMITS; TRAFFIC-SAFETY; SASKATCHEWAN-CANADA; VEHICLE-SPEED; ACCIDENT-SEVERITY; HUMAN-ERROR; FATALITIES-; INJURIES-; SINGLE-VEHICLE-ACCIDENTS; SPEED-DIFFERENTIAL; DATA-ANALYSIS |
| 摘要： | The latest speed limit increases in the United States have brought about debates about the relationship between travel speed and traffic safety. The relationship between travel speed and collision severity is clear: Increase in travel speed leads to a dramatic increase in collision severity. However, the relationship between speed and collision involvement is more complicated. Examined here is the relationship between travel speed and collision involvement on Saskatchewan provincial highways. Saskatchewan data indicate that the most prevalent source of human error contributing to collisions may be speed-related. The study of the relationship between vehicle speed and collisions therefore is fundamental for developing countermeasures to achieve compliance with speed regulations and to reduce the number of collisions. According to nine provincial-wide speed surveys and corresponding accident data from the last 26 years, traffic casualties and casualty rates on provincial highways are closely correlated to the surveyed average travel speed. This finding is not surprising, considering the fact that about 60 to 80% of all collisions on provincial highways are single-vehicle collisions. The relationship indicates that casualties will be reduced by about 7% for every 1-km/hr (0.62-mph) reduction in average travel speed on provincial highways. Casualty rates on provincial highways are closely correlated to speed differentials--higher speed differentials lead to higher casualty rates. Some difficult issues relating to speed and safety are also discussed. |
| 总页数： | Transportation Research Record. 1997. (1595) pp8-13 (4 Fig., 7 Tab., 10 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- National Traffic Speeds Survey I: 2007. Traffic Tech: Technology Transfer Series.
- Work Zones and Travel Speeds: The Effects of Uniform Traffic Officers and Other Speed Management Measures.
- Feasibility of Bluetooth Data as a Surrogate Measure of Vehicle Operations, Technical Summary.
- TRANSPORT OF MANUFACTURED HOUSING UNITS: DIFFERENTIAL EFFECTS OF 4.27-M (14-FT)-WIDE AND 4.88-M (16-FT)-WIDE UNITS ON TRAFFIC.
- High Occupancy Vehicle (HOV) System Analysis Tools- Statewide High Occupancy Vehicle (HOV) Facility Performance Analysis.
- An approach to create support for speed reduction.
检索历史
应用推荐
