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For the traffic experts to be able to correctly assess the condition of the controlled segment of a traffic system numerous data from various sources need to be collected, and then integrated, presented and analyzed in adequate space-time context.
The integration of the collected data into a common entity accelerates the processing of data, analysis and presentation of the conditions of the controlled part of the traffic system. Therefore, the need for certain data has been defined, such as: traffic density, travel time component (waiting, walking, ride, etc.), meteorological data / parameters (air temperature, precipitation volume, fog and dew, storms with hail or strong winds), visibility, time of day (night, day), condition of the traffic network and others affecting the condition of the traffic infrastructure and functioning of the traffic system.

Keywords: traffic control, data, integration, encapsulation