2008HighwaySafetyManual.pdf

The Highway Safety Manual: A New Tool for Safety Analysis Elizabeth Wemple, PE Kittelson Associates, Inc. HSM Production Team Kittelson Associates, Inc. Midwest Research Institute John Mason Persaud Lyon Presentation Overview Introduce the HSM - A resource for safety analysis Highlight useful methods and resources Provide application examples What is the HSM? How will the HSM be useful? Presents new techniques and information – Reflects evolution from qualitative descriptive-based analysis to quantitative prediction – Tools are applicable for simple and complex projects – HSM content applicable to all types of projects, including those not exclusively focused on safety Like the HCM, the HSM is expected to be: – Definitive – Widely-accepted – Science-based SAFETY In the beginning… HSM – A Tool for Safety Analysis Part A: Introduction, Human Factors, and Fundamentals Part B: Roadway Safety Management Process Part C: Predictive Methods – Rural two-lane roads – Rural multi-lane highways – Urban and Suburban Arterials Part D: Accident Modification Factors – Roadway segments – Intersections – Road networks Each part of the HSM provides different tools for safety analysis that can be used alone or in combination – Interchanges – Special facilities and geometric situations Anticipated Applications of the HSM Identify – Sites for improvements – Contributing factors and potential countermeasures Conduct – Economic appraisals that incorporate safety benefits and prioritize based on estimated safety benefit – Safety effectiveness evaluations of implemented treatments Calculate – Anticipated safety benefits associated with various design alternatives Incorporate – Quantitative safety estimates in all alternative improvement evaluations Part A – Introduction and Overview, Human Factors and Fundamentals i i l Part A provides the context for effectively applying the material in parts B, C, and D of the HSM Introduction and Overview – Introduces the content an