1. T HE FHWA P ROGRAM FOR P ROTOTYPING A DVANCED D ECISION S UPPORT FOR W INTER R OAD M AINTENANCE P AUL P ISANO R OAD W EATHER M ANAGEMENT C OORDINATOR F EDERAL H IGHWAY A DMINISTRATION

2. Presentation Overview Summarize Surface Transportation Weather Decision Support Requirements (STWDSR) effort Highlight STWDSR findings Review Maintenance Decision Support System (MDSS) project

3. Goals STWDSR Needs, Requirements, Outcomes DecisionSupportSystem System Resources (Information) Performance Requirements on DSS User Needs for Information The Highway System Safety Mobility Productivity Environment National Security (Outcomes) Operational Techniques (Output)

4. Progress to Date STWDSR Project (Mitretek) Operational Concept Description Stakeholders: State DOTs, National Labs (6), Value Added Meteorological Services (VAMS) MDSS Prototype & Ops. Test 00-03 STWDSR V2.0 Preliminary Interface Reqs. STWDSR Needs (V1.0) Road Weather Mgmt. Prog. FHWA Weather Team White Paper 19972000 Met. Comm.

5. Decision Support Needs (V1.0) Defined “needs” as “decisions” Covered all surface transportation decision makers Defined 426 needs –Across 44 decision maker categories –Across 3 scales: planning, operational, and warning

6. Examples of Needs

7. Operational Concept Description (V2.0) Analyzed winter road maintenance decisions –Originally 10 operational scale decisions –Expanded to 53 –Organized into 16 clusters Defined essential functions (i.e., system requirements) for the Weather Information for Surface Transportation – Decision Support System (WIST-DSS)

8. 9, 77% 2.I Init. Dispatch 33, 60% 2.F Asgn. Crews 14, 56% 2.D Prep. Exp. Time Before Event (Hrs., pseudo logarithmic) 100030103-3 41, 40% 2.B Prepare 16, 72% 2.C Get Ready 2.E Select Strat. 14, 75% 2.G Prep Equip. 2.H Act. Staff 0, 96% 2.K Prime Disp. 3.8, 95% 49, 46% 2.A Aware 29 MonitorDetect Needs: Timing and Confidence

9. Preliminary Interface Requirements (V2.0) Defines the information resources needed from external sources for decision support. Synthesizes the Information Taxonomy –212 items necessary to support winter road maintenance decisions –Three categories: environmental information, transportation state information, and the treatment asset information.

10. Treatment Assets Transportation State Environmental Threat Formation of the MDSS 212 Data Objects

11. Prototype Development The MDSS Project Puts STWDSR effort into practice for one user group (winter maintenance managers) Based on design elements captured in the OCD and information interfaces in the PIR

12. Logical Functions Defined by OCD for MDSS Update Clock Select Context Generate Scenario Update Context Monitor Conditions Present Decision Make Decision conditions_scenario decision_situation context_planning context_parameters time_local time_universal decision_operational presentation_user input_user decision_selector decision_criteria scenario_selector situation_selector context_operational decision_file (to all processes) context_update context_selector query_scenarioresponse_scenario response_decision query_decision Primary Information Interfaces Computer-Human Interface

13. MDSS Approach Employ National Labs to develop prototype modules –Iterative development with users and system deployers –Based on open systems principles Field test

14. MDSS Prototype Developers National Oceanic and Atmospheric Administration (NOAA): Environmental Technology Lab (ETL) Forecast System Lab (FSL) National Severe Storm Lab (NSSL) Department of Defense (DOD): The Army Cold Regions Research and Engineering Lab (CRREL) The Air Force MIT/Lincoln Lab (MIT/LL) University consortium: The National Center for Atmospheric Research (NCAR)

15. Development Schedule Prototype Development OCD & PIR 9/009/01 Field Test & Evaluation 7/03 Deployment Labs, DOTs, VAMS

16. References & Contacts All documents are posted on the Electronic Document Library www.its.dot.gov/welcome.htm To participate in MDSS contact –Rudy Persaud – 202-493-3391 rudy.persaud@fhwa.dot.gov –Gary Nelson – 202-488-5718 gnelson@mitretek.org