EXECUTIVE SUMMARY

1. INTRODUCTION

• 1.1 Aims of this Project
• 1.2 Background
• 1.3 Effects of Lowering Speeds
• 1.4 Alcohol and Speed

2. LITERATURE REVIEW

• 2.1 Studies Based on Speeds in Specific Crashes
• 2.2 Driver's Characteristic Speed and Accident History
• 2.3 Correlational Studies
• 2.4 Summary

3. METHOD

• 3.1 Case-Control Study Risk Estimation
  • 3.1.1 Case Vehicle Selection Criteria
  • 3.1.2 Case Vehicle Investigation Procedure
  • 3.1.3 Determining Speeds of Case Vehicles
  • 3.1.4 Control Vehicle Selection Criteria
  • 3.1.5 Measuring Speeds of Control Vehicles
• 3.2 Hypothetical Crash Outcome Method
• 3.3 Relationship Between Speed and Alcohol

4. RESULTS

• 4.1 Travelling Speed and the Risk of Involvement in a Casualty Crash
  • 4.1.1 Data Collection on Cars Involved in Casualty Crashes
  • 4.1.2 Data Collection on Non-Crash Involved Cars
  • 4.1.3 Comparing the Travelling Speeds of Cases and Controls
  • 4.1.4 Travelling Speed and the Relative Risk of Involvement in a Casualty Crash
  • 4.1.5 Free Travelling Speed Crash Types
• 4.2 Hypothetical Crash Outcomes at Reduced Travelling Speed
  • 4.2.1 Injuries Sustained in the Crashes
  • 4.2.2 Location of Crashes
  • 4.2.3 Hypothetical Outcomes at Reduced Travelling Speeds
  • 4.2.4 Estimated Effect of Eliminating Speeding Vehicles Based on Risk Estimates
• 4.3 Relationship Between Speed and Alcohol

5. DISCUSSION

• 5.1 Travelling Speed and the Risk of Involvement in a Casualty Crash
  • 5.1.1 Reasons for the Rate of Increase in Risk of Involvement in a Casualty Crash
  • 5.1.2 Validity of the Risk Estimates
  • 5.1.3 Implications for the Setting of Speed Limits
  • 5.1.4 Implications for Enforcement
• 5.2 Hypothetical Travelling Speed and Crash Severity
• 5.3 The Relationship Between Speed and Alcohol
• 5.4 Speed, Alcohol and the Risk of Involvement in a Casualty Crash
  • 5.4.1 Comparing Speed and Alcohol Risks
  • 5.4.2 Penalties for Speeding and Drink Driving

6. CONCLUSIONS AND RECOMMENDATIONS

ACKNOWLEDGEMENTS

REFERENCES