Road design

Cover of Safe Intersection Approach Treatments and Safer Speeds Through Intersections: Phase 2
Safe Intersection Approach Treatments and Safer Speeds Through Intersections: Phase 2
  • Publication no: AP-R385-11
  • ISBN: 978-1-921709-91-3
  • Published: 26 August 2011

This project examines speeds through intersections. Phase 2 provides an assessment of selected treatments at intersections. A key objective of this research is to provide information to Austroads members on effective techniques to reduce speed and speed-related crashes at intersections. These will be assessed in light of the Safe System approach, particularly with regard to harm minimisation in speed management.

  • 1. INTRODUCTION
  • 2. PROJECT OUTLINE
    • 2.1. Safe Intersection Speeds – Overview
    • 2.2. Outcomes from Phase 1
    • 2.3. Objectives for Phase 2
    • 2.4. Report Scope
  • 3. PHASE 2 – CASE STUDIES
    • 3.1. Method
      • 3.1.1. Case Study Examples
      • 3.1.2. Analysis
    • 3.2. Case Study Details
      • 3.2.1. Examples from Road Authorities
      • 3.2.2. Scope of Treatments
      • 3.2.3. Documentation
      • 3.2.4. Data Issues
  • 4. FINDINGS FROM CASE STUDIES
    • 4.1. Treatment Types
    • 4.2. Indications of Effectiveness
      • 4.2.1. Roundabouts
      • 4.2.2. Reduced Speed Limit
      • 4.2.3. Vehicle Activated Signs
      • 4.2.4. Vertical Deflection
      • 4.2.5. Horizontal Deflection
      • 4.2.6. Transverse Pavement Devices
      • 4.2.7. Other Devices and Treatments
    • 4.3. Summary of Findings
  • 5. DISCUSSION
    • 5.1. Reducing Speeds at Intersections
    • 5.2. Implications for Treatments
      • 5.2.1. Advance Warning
      • 5.2.2. Combined Treatments
    • 5.3. Implications for Evaluation
      • 5.3.1. Evaluation Design
      • 5.3.2. Multiple Treatments
      • 5.3.3. Speed Profiles
  • 6. CONCLUSION
    • 6.1. Intersection Speed Reduction Treatments
    • 6.2. Recommendations
      • 6.2.1. Treatments
      • 6.2.2. Evaluation
  • REFERENCES
  • APPENDIX A CASE STUDY DETAILS
  • APPENDIX B CASE STUDY OBSERVATIONS SUMMARY