Combined Q-WARN/SPD-HARM/CACC
Illustrative
44
Freeway collision
occurs and queue
forms
Queue alert immediately
provided to following
vehicles to prevent
secondary crashes
2
Dynamic speed harmonization
initiated for upstream traffic to
reduce speed
3
CACC initiated for upstream traffic
in order to maximize carrying
capacity of the road as crash is
cleared
Slow to
45
Slow to
45
1
CACC
SPD-HARM
Q-WARN
4