The invention relates to a method for setting signaling devices for a construction site depending on the current state and activity of the construction site. Traffic flow as well as construction activities can be adjusted to balance traffic flow, environmental conditions and safety of construction workers. Smart sensors, manual and automatic adjustments of the site manager and predictive algorithms are creating reasonable and logic adjustments.

The invention relates to a method for exchanging data in a communication system comprising a number of communication subscribers who exchange data with at least one data source.

The invention relates to a method for wrong-way driver detection. The device is receiving signals of other road users. Those signals are processed to identify wrong-way driving of any road user. Alerts can be signaled to the driver, semi- or fully autonomous vehicle and distributed to any other road user.