The methodology of traffic safety evaluation in Slovenia is currently based mainly on recording the data about past traffic accidents, measuring their count and an often superficial evaluation of their consequences. Technical and societal aspects are usually only considered to a limited extent, mostly as infrastructure data and measurable physiological properties of the persons involved in accidents. Providing a comprehensive evaluation of the traffic events, which also enables a more detailed determination of their causes, their prediction and proposal of measures for limiting their consequences, requires acquisition, storage, processing, and analysis of other available and accessible data related to traffic safety. We present the activities of the project initiated and funded by the Slovenian Traffic Safety Agency and co-funded by the Slovenian Research Agency, targeted to address these issues. The first part of the paper includes the overview of the relevant research in the field, lists the traffic-safety-related data available in Slovenia, and outlines the methodology of their acquisition and storage. The practical aspects of data manipulation are summarised in the presentation of the developed administrator and end-user tools. In the second part we present the progress on development of the new methodology of traffic safety analysis and evaluation, based on readily obtainable, measurable and comparable data. In the discussion we highlight the possibilities and challenges of using this approach, evaluate its suitability for use on general traffic systems and provide and insight into planned further research.