Distribution and interpretation of geo-referenced events for the purpose of road traffic shaping

In this paper the authors present an approach to the interpretation and distribution of geo-referenced information about road events for the purpose of road traffic shaping in the INSIGMA system. Particular focus was paid to the architecture and development of Registration, Distribution and Displaying Road Information on Variable Message Signs that implements the proposed mechanism. Created subsystem enables to inform road users about actual traffic information derived from variable sensors like: speed detectors (induction loops, GPS Tracker), Event Notification Service (ENS), route planning service (RPS). There has been described the problem of events´ interpretation, need for analysis and correlation in space and time as well as messages prioritization for the purpose of support for the traffic safety and being quickly and precisely interpreted by the roads´ users.