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U.S.
Department of Transportation
Dynamic Speed Harmonization (SPD-HARM)
§Dynamic Speed
Harmonization (SPD-HARM) aims to dynamically adjust and coordinate vehicle
speeds in response to congestion, incidents, and road conditions to
maximize throughput and reduce crashes.
□Reducing speed variability among vehicles improves
traffic flow and minimizes or delays flow breakdown formation
□Utilize V2V and V2I communication to coordinate
vehicle speeds
□Provide recommendations directly to drivers
in-vehicle
□Recommend speeds by lane, by vehicle weight and size,
by pavement traction
