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SPD-HARM Illustrative
20
Vehicles slowing down at recurrent bottleneck broadcast speed, location, etc.
1
TMC identifies impending congestion and initiates speed harmonization plan for upstream vehicles
2
TMC
Slow to 45
Slow to 45
Slow to 45
TMC relays appropriate speed recommendations to upstream vehicles
3
Upstream vehicles implement (or alert drivers to) the recommended speed
4
Slow to 45