1. O VERVIEW OF THE N EW H IGHWAY S AFETY M ANUAL Tim Neuman, CH2M Hill NCHRP 17-38 Project Member 2009 Strategic Highway Safety Plan Peer Exchange SCOHTS Annual Meeting May 1, 2009 Chicago, Illinois

2. Presentation Summary What is the HSM? Why is the HSM needed? How can the HSM be used? When will the 1 st Edition be available? Where can one find more information about the HSM?1 2 3 4 5

3. I. WHAT IS THE HSM? Overview of the new HSM

4. WHAT IS THE HSM? Provide Best factual information Tools To facilitate explicit safety considerations for: PlanningDesignOperationsMaintenance through Synthesis of validated highway research Adapted & integrated to practice Analytical tools for predicting impact on road safety

5. T HE V ISION OF THE HSM - A D OCUMENT A KIN T O THE HCM Definitive; represents quantitative ‘state-of- the-art’ information Widely accepted within professional practice of transportation engineering Science-based; updated regularly to reflect research1 2 3

6. W HAT THE HSM IS NOT The HSM does not set requirements or mandates The HSM is not a best practice document for design or operations. The HSM contains no warrants or standards and does not supersede other publications that do. vs

7. The HSM does not establish a legal standard of care nor does it create a duty to the public.

8. II. W HY D O W E N EED THE HSM? Overview of the new HSM

9. I S T HIS R OAD “S AFE ” OR “U NSAFE ”? What does safety really mean?

10. Nominal Safety Substantive Safety Examined in reference to compliance with standards, warrants, guidelines and sanctioned design procedures The expected or actual crash frequency and severity for a highway or roadway H IGHWAY S AFETY H AS T WO D IMENSIONS *Ezra Hauer, ITE Traffic Safety Toolbox Introduction, 1999

11. U NLIKE N OMINAL S AFETY, S UBSTANTIVE S AFETY IS A C ONTINUUM

12. S UBSTANTIVE S AFETY M AY V ARY W HEN N OMINAL S AFETY D OES N OT Existing Conditions Alternative 1 Alternative 2 Alternative 3

13. W E ’ RE I NTERESTED IN O THER I MPACTS FOR P ROJECT L EVEL D ECISIONS – W HAT A BOUT S UBSTANTIVE S AFETY ? Safety Environmental Traffic Right-of-Way Costs Impacts Impacts Operations Traffic Noise Model 1.0 CAL3QHC Mobile 5a 3-D Visualization CITYGREEN HCM CORSIM PASSER TRANSYT7F VISSIM GEOPAK Plans Cost Models Real estate appraisals DOT databases Design Criteria (nominal safety) More quantitative Greater weight The HSM

14. T HE HSM C ONTAINS B EST S CIENCE & R ESEARCH Synthesis of previous research New research commissioned by AASHTO and FHWA

15. III. HOW WAS THE HSM DEVELOPED? Overview of the new HSM

16. T HE HSM – A T EN - YEAR R ESEARCH A ND D EVELOPMENT E FFORT TRB Annual meeting Absence & need to estimate safety impacts TRB December Workshop TRB Joint Subcommittee for the Development of a HSM Members of sponsoring committees AASHTO, FHWA, ITE TRB Task Force for the Develop- ment of a HSM AASHTO HSM TF 1 st Edition (projected) 2 nd Edition 199920002003 Future Research, research and more research 20102007

17. S IGNIFICANT E FFORT & P ROFESSIONAL S UPPORT P RODUCED THE HSM Joint Subcommittee sponsored by 7 TRB committees Thousands of hours of volunteer effort Research program funded by NCHRP, AASHTO & FHWA

18. NCHRP Project 17-18(04) Development of a HSM - Draft Table of Contents for the HSM. NCHRP Project 17-25 Crash Reduction Factors for Traffic Engineering and ITS Improvements NCHRP Project 17-26 Development of Models for Prediction of Expected Safety Performance for Urban and Suburban Arterials NCHRP Project 17-27 Prepare Parts I and II of the HSM NCHRP Project 17-29 Safety Prediction Models for Rural Multilane Highways for Use in the HSM NCHRP Project 17-34 (4) and (5) Prepare Parts IV and V of the HSM NCHRP Project 17-36 Production of the First Edition of the HSM NCHRP Project 17-37 Pedestrian Predictive Crash Methodology for Urban and Suburban Arterials NCHRP Project 17-38 HSM Implementation and Training Materials R ESEARCH P ATH TO THE HSM V.1

19. IV. W HAT IS C OVERED BY THE HSM? Overview of the new HSM

20. O UTLINE OF THE HSM Part A Introduction, Human Factors, and Fundamentals Part B Roadway Safety Management Process Part C Predictive Method Part D Accident Modification Factors

21. PART A I NTRODUCTION, H UMAN F ACTORS, & F UNDAMENTALS Introduction and Overview Chapter 1 Human Factors Chapter 2 Fundamentals Chapter 3

22. P ART B R OADWAY S AFETY M ANAGEMENT P ROCESS 4 5 6 7 8 9 Network Screening Diagnosis Countermeasure Selection Economic Appraisal Prioritization of Improvement Projects 4 5 67 8 9 Safety Effectiveness Evaluation

23. P ART C P REDICTIVE M ETHOD Two-Lane Rural Roads Urban/ Suburban Arterial Highways Rural Multilane Highways Methodology Applications Safety issues not explicitly addressed by the methodology Example problems References Special Part C Common Procedures Calibration Combining predicted with observed crashes

24. P ART D A CCIDENT M ODIFICATION F ACTORS Roadway Segments CHAPTER 13 Intersections CHAPTER 14 Interchanges CHAPTER 15 Special facilities and Geometric Situations CHAPTER 16 Road Networks CHAPTER 17

25. V. WHO SHOULD USE THE HSM? Overview of the new HSM

26. W HO S HOULD U SE THE HSM? System Planning Project Planning Preliminary Design, Final Design, & Construction Operations & Maintenance

27. Assess the system needs & identify projects/studies Program projects Evaluate system-wide safety effects of programs System Planning Project Planning Preliminary Design, Final Design, and Construction Operations and Maintenance

28. Define problem(s) and assist in scoping Identify potential solutions Assess or evaluate multiple alternatives and expected quantitative safety effects Aid in identification of a preferred alternative System Planning Project Planning Preliminary Design, Final Design, and Construction Operations and Maintenance

29. Evaluate safety of alternative design approaches Assist in review & documentation of design exceptions, variances and waivers Inform decisions on construction staging, work approaches, etc. System PlanningProject Planning Preliminary Design, Final Design, and Construction Operations and Maintenance

30. Monitor operations to maintain balance among safety, mobility and access. Evaluate the effectiveness of implemented improvements System PlanningProject Planning Preliminary Design, Final Design, and Construction Operations & Maintenance

31. VI. W HEN W ILL THE HSM BE A VAILABLE ? Overview of the new HSM

32. I MPLEMENTATION S CHEDULE Now through July 31, 2009: Review & balloting by SCOTE, SCOHTS and SCOD Sept 1 st to 30 th, 2009 – Ballot by SCOH Expected Release Date: Early 2010

33. C OMPANION S OFTWARE HSM PartSupporting Tool PART B: Roadway Safety Management Process SafetyAnalyst http://www.safetyanalyst.org/ PART C: Predictive Methods IHSDM PART D: Accident Modification Factors FHWA CRF/AMF Clearinghouse

34. T RAINING & O UTREACH A CTIVITIES Sept – Nov 2009 – Conduct two or three multi-state pilot courses August 2009 – TRB Task Force Meeting TRB 2010 Annual Meeting – One-day workshop Training materials, including “Train-the- trainer” available upon HSM release

35. VII. W HERE C AN O NE F IND M ORE A BOUT THE HSM? Overview of the new HSM

36. http://www.highwaysafetymanual.org

37. DATA NEEDS GUIDE http://www.highwaysafetymanual.org

38. K EY C ONTACTS AASHTO – Ken Kobetsky: kenk@aashto.org, (202) 624-5254kenk@aashto.org – Jim McDonnell: jimm@aashto.org, (202) 624-5448jimm@aashto.org I MPLEMENTATION – Geni Bahar (User Liaison Subcommittee of the TRB HSM Task Force): genibahar@rogers.com, (416) 932-9272genibahar@rogers.com T RAINING – Karen Dixon (PI of NCHRP 17-38): karen.dixon@oregonstate.edu, (541) 737-6337 karen.dixon@oregonstate.edu

39. T HE E ND Questions?