1
2	Topics Background Applications Concepts and Prototyping Benefit-Cost Analysis Vehicle Data Needs
3	Crash Situation Under Adverse Weather
4	Weather-related Costs State DOTs spend: $2 billion/year on snow and ice control $5 billion/year on infrastructure repairs due to snow & ice Delays from snow, ice, and fog cost $11.6 billion per year Delays due to weather cost trucking companies $3.1 billion/year in the 50 largest cities Lost commerce due to storm-closed roads is $3.82 billion in just 15 states
5	In order to make a difference… Road managers and users need route-specific/ segment-specific/spot-specific weather and road condition information to: Reduce weather-related crashes by changing driver behavior Actively manage traffic demand and capacity Carry out winter maintenance activities more effectively and efficiently Make better travel choices There are two ways to get the information: Road Weather Information Systems Connected Vehicles
6	Potential of Connected Vehicles
7	U.S. DOT Connected Vehicle Efforts Develop ConOps Engage stakeholders to validate RdWx applications (i.e. vehicle data) needs and benefits Conduct Benefit-Costs Analyses Identify specific weather-related vehicle data requirements for RdWx applications Develop, test and evaluate RdWx applications Conduct controlled experiments to characterize specific weather-related vehicle data elements
8	Road Weather CV Applications Enhanced Maintenance Decision Support Information for Maintenance and Fleet Management Systems Weather-Responsive Traffic Management Variable Speed Limits Signal Timing Optimization Motorist Advisories and Warnings Information for Freight Carriers Information and Routing Support for Emergency Responders
9	Applications Benefit-Cost Analysis Estimate potential national costs and benefits resulting from the implementation of RdWx connected vehicle applications Being developed in two phases: Phase I Focuses on safety aspects of the applications Due for completion October, 2012 Phase II Focuses on mobility and environmental aspects Due for completion December, 2012 Will help establish the most critical weather-related vehicle data elements
10	Road Weather Applications – Net Benefits
11	Integrating Mobile Observations (IMO) Project - Lessons Learned CAN-Bus/OBD data from vehicle probes is relatively easy to get and transmit Decoding/interpreting the Parameter Group Numbers (PGNs) and Suspect Parameter Numbers (SPNs) is very difficult The effort has resulted in significant progress identifying Wx-relevant PGNs and SPNs and creating a data dictionary, but there’s still room for improvement CAN-Bus/OBD data was successfully transmitted over 700MHz radio and Common Cellular Carrier Networks Mobile data has been successfully integrated into Clarus and a couple of state applications
12	Priority Vehicular Data (best guess) BSM Part 1 Brake system status Brake applied status Traction control status Anti-lock brake status Stability control status
13	Next Steps Demonstrate value of connected vehicle data via the development, testing and evaluation of key applications Carry out the Phase II Benefit-Cost analysis with focus on mobility, environment and other benefits Validate weather-related vehicle data elements in support of USDOT (NHTSA) Rulemaking decision