A system for automatically recognising anomalous situations along roads travelled by motor-vehicles for intelligent motor-vehicle driving speed control along the roads; wherein the motor-vehicles are configured to transmit data allowing anomalous situations to be recognised along roads travelled by the motor-vehicles; the system comprises data processing resources configured to: - receive and process data transmitted by the motor-vehicles to recognise anomalous situations along the roads travelled by the motor-vehicles based on a recognition algorithm, - when anomalous situations are recognised along the roads travelled by the motor-vehicles, generate associated alert events and compute reference driving speeds along the roads recognised to be affected by anomalous situations, and - transmit data representative of the alert events and of the reference driving speeds along the roads recognised to be affected by anomalous situations; the motor-vehicles are further configured to: - receive data representative of alert events and reference driving speeds, and - use the received data to implement one or both of the following actions: ∘ inform the drivers of the motor-vehicles of the anomalous situations recognised along roads travelled by motor-vehicles, and ∘ cause current driving speeds of the motor-vehicles to be adjusted to the reference driving speeds along roads recognised to be affected by anomalous situations; characterised in that the motor-vehicles are further configured to transmit data allowing anomalous situations to be recognised along the roads travelled by the motor-vehicles by: - periodically sending messages each containing a minimum data set, and - sending, in response to requests from the data processing resources, messages each containing an enriched data set. wherein the motor-vehicles are configured to transmit data allowing anomalous situations to be recognised along roads travelled by the motor-vehicles; the system comprises data processing resources configured to: - receive and process data transmitted by the motor-vehicles to recognise anomalous situations along the roads travelled by the motor-vehicles based on a recognition algorithm, - when anomalous situations are recognised along the roads travelled by the motor-vehicles, generate associated alert events and compute reference driving speeds along the roads recognised to be affected by anomalous situations, and - transmit data representative of the alert events and of the reference driving speeds along the roads recognised to be affected by anomalous situations; - receive and process data transmitted by the motor-vehicles to recognise anomalous situations along the roads travelled by the motor-vehicles based on a recognition algorithm, - when anomalous situations are recognised along the roads travelled by the motor-vehicles, generate associated alert events and compute reference driving speeds along the roads recognised to be affected by anomalous situations, and - transmit data representative of the alert events and of the reference driving speeds along the roads recognised to be affected by anomalous situations; the motor-vehicles are further configured to: - receive data representative of alert events and reference driving speeds, and - use the received data to implement one or both of the following actions: ∘ inform the drivers of the motor-vehicles of the anomalous situations recognised along roads travelled by motor-vehicles, and ∘ cause current driving speeds of the motor-vehicles to be adjusted to the reference driving speeds along roads recognised to be affected by anomalous situations; - receive data representative of alert events and reference driving speeds, and - use the received data to implement one or both of the following actions: ∘ inform the drivers of the motor-vehicles of the anomalous situations recognised along roads travelled by motor-vehicles, and ∘ cause current driving speeds of the motor-vehicles to be adjusted to the reference driving speeds along roads recognised to be affected by anomalous situations; ∘ inform the drivers of the motor-vehicles of the anomalous situations recognised along roads travelled by motor-vehicles, and ∘ cause current driving speeds of the motor-vehicles to be adjusted to the reference driving speeds along roads recognised to be affected by anomalous situations; characterised in that the motor-vehicles are further configured to transmit data allowing anomalous situations to be recognised along the roads travelled by the motor-vehicles by: - periodically sending messages each containing a minimum data set, and - sending, in response to requests from the data processing resources, messages each containing an enriched data set. - periodically sending messages each containing a minimum data set, and - sending, in response to requests from the data processing resources, messages each containing an enriched data set.