December 2 2020 200 330 PM EST Agenda Karen Scurry Federal Highway Administration Overview of CMFs and the CMF Clearinghouse Taha Saleem UNC Highway Safety Research Center and Manager of the CMF Clearinghouse ID: 1028883
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1. Understanding the Upcoming CMF Rating Transition and Exploring Real-World Applications of CMFsDecember 2, 20202:00 – 3:30 PM EST
2. AgendaKaren Scurry, Federal Highway AdministrationOverview of CMFs and the CMF ClearinghouseTaha Saleem, UNC Highway Safety Research Center and Manager of the CMF ClearinghouseCMF Clearinghouse rating transitionTroy Bucko, California Department of TransportationIncorporating Data Driven Safety Analysis in Traffic Impact StudiesSrinivas Geedipally, Texas A&M Transportation Institute Process used by TTI to assist TxDOT in the review and development of the CMFs used for HSIP projects.
3. Webinar “Housekeeping”Rejoining the programAll lines are muted Control PanelQuestions/assistanceWebinar Recording
4. PollHow many people are attending the webinar at your location?
5. Overview of CMFs and the CMF ClearinghouseKaren Scurry, FHWA Office of Safety
6. What is a Crash Modification Factor?Multiplicative factor that reflects the expected safety effectiveness of a countermeasure Used to compute the expected number of crashes after implementing a given countermeasure at a specific siteCMF < 1CMF = 1CMF > 1Decrease in CrashesNo Change in CrashesIncrease In CrashesExamples:CMF of 0 represents a 100% reduction in the number of crashesCMF of 0.8 represents a 20% reduction in the number of crashesCMF of 1.2 represents a 20% increase in the number of crashes
7. What is the CMF Clearinghouse?A regularly updated, online repository of CMFs,A mechanism for sharing newly developed CMFs, andEducational information on the proper application of CMFs.
8. PollHow often do you use the CMF Clearinghouse? DailyWeeklyMonthlyQuarterlyRarely
9. CMF Clearinghouse Features
10. Dealing With Too Many Search ResultsOption 1: Narrow down using more keywords
11. Dealing With Too Many Search Results Option 2: Narrow down using filters
12. Dealing With Too Many Search ResultsOption 2: Narrow down using filters (cont.)116 CMFs235 CMFs373 CMFs
13. Dealing With Too Many Search ResultsUse the CMF Comparison Tool
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15. CMF Details Page
16. CMF Details Page (cont’d)
17. CMF Details Page (cont’d)
18. CMF Clearinghouse User GuideGuide Outline Introduction to CMFsIntroduction to the CMF ClearinghouseSearching for CMFsIdentifying Appropriate CMFsInformation for Advanced UsersVideo TutorialsConducting a CMF SearchUnderstanding Search ResultsFiltering Search ResultsUsing the CMF Details Page
19. SummarySelecting an appropriate CMF is importantApplying CMFs correctly is important as well – can have large impact on resultsCMF Clearinghouse team is available to provide technical assistance (e.g. help explain CMFs on the site or from a study report)
20. Q&AEnter questions using the GoToWebinar window
21. PollIn what processes/analyses does your organization use CMFs? (select all that apply)Funding applicationsSystem-level or project-level planningAlternatives analysisDesign decisionsOperations analysis
22. PollHave you conducted safety analysis using CMFs as part of Traffic Impact Analyses?YesNo Not sure
23. Poll For governmental agency attendees, does your organization require safety analysis including CMFs in Traffic Impact Analyses?YesNoNot SureNot Government
24. Incorporating DDSA into Traffic Impact Analyses: A How-To Guidehttps://safety.fhwa.dot.gov/rsdp/downloads/fhwasa19026.pdf
25. PollDoes your State have a State-specific CMF list? YesNoDon’t know
26. State-selected CMFs Lists http://www.cmfclearinghouse.org/stateselectedlist.cfm
27. Moving ForwardCMF Clearinghouse Rating TransitionWill be providing further details on the transition timeline in the coming months.Continue to check the “Changes Ahead” page (http://www.cmfclearinghouse.org/changes.cfm) for up-to-date informationSummary of State SPF Calibration and Development Effortshttp://www.cmfclearinghouse.org/resources_spf.cfmPlease review and let us know if additional SPFs have been developed
28. Additional ResourcesRoadway Safety Analysis Videos for CMFsTraining: Application of CMFsScience of CMFsDeveloping Quality CMFshttp://www.cmfclearinghouse.org/using_cmfs.cfm
29. Wrap-upPost-webinar surveyCertificate of attendance
30. www.CMFClearinghouse.org Karen Scurry, P.E. FHWA Office of Safety Programs202-897-7168karen.scurry@dot.gov