1. Module 1-6 0 Intervention Tools Demonstrate the use of tools, such as statistical modeling, the Australian model, the Haddon Matrix, engineering studies, and road safety audits or assessments, for identifying effective interventions.

2. Module 1-6 1 Major Topics Statistical Models Engineering Studies Road Safety Audits The Australian Safe Systems Approach The Haddon Matrix

3. Module 1-6 2 The identification and examination of well chosen sites will yield safety improvements… Models for Identifying Sites

4. Module 1-6 3 Example Think about it …

5. Module 1-6 4 Step 1: Examine the Crash Data Step 2: Conduct a Field Study Step 3: Identify Countermeasures Step 4: Prioritize Countermeasures Step 5: Implement the Countermeasures Step 6: Evaluate the countermeasure impact Engineering Studies Think about it …

6. Module 1-6 5 Road Safety Audits A formal examination with a structured process; Conducted independently by professionals who are not currently involved with the project; Completed by a team of qualified professionals representing appropriate disciplines; Focuses solely on safety issues; and Examines the transportation site with respect to all potential road users.

7. Module 1-6 6 The Australian Model The Safe Systems Approach Think about it …

8. Module 1-6 7 The Haddon Matrix Crash Time Pre CrashPre Crash CrashCrash Post CrashPost Crash Other Factors HumanHuman VehicleVehicle RoadwayRoadway EnvironmentalEnvironmental

9. Module 1-6 8 The Haddon Matrix (cont.) http://www.tsc.berkeley.edu/newsletter/winter05-06/haddon.html Note: Evans thinks the matrix places too much emphasis on the crash, and that “Pre-crash” has usually meant the seconds before the crash. However, that view probably pertains to this matrix without the fourth column (early Haddon matrix had only the first 3 columns).

10. Module 1-6 9 Review Statistical Models Engineering Studies Road Safety Audits The Australian Safe Systems Approach The Haddon Matrix