‹#›
U.S. Department of Transportation
Triscallion_Black
Key Elements of BSM Part 2 Needed for Mobility Applications
§BSM Parts 1 and 2 via DSRC  provides the vehicle data needed to support some localized mobility applications
§HOWEVER:  DSRC link burdened by redundant Part 2 elements
MOBILITY APPLICATIONS
(where roadside units deployed)
KEY PART 2 DATA ELEMENTS
TO SUPPLEMENT PART 1 DATA
§Cooperative Adaptive Cruise Control
§Speed Harmonization
§Queue Warning
§Transit Signal Priority
§Incident Scene Work Alerts
§Emergency Road-Weather Conditions (Diagnosis/Prediction)
§Weather Data (with examples)
□Ambient Temperature
□Ambient Air Pressure
□Traction Control Status
□Wiper Status
§Vehicle Data (with examples)
□Exterior Lights Status
□Type
□Antilock Brake System Status
In fact, the DSRC link would likely be so burdened with all of the redundant Part 2 data that the original V2V safety applications may not work anymore – because the expanded message is too verbose.