The document first briefly explains the concepts of transit tourism and service zones, presenting some foreign examples of construction of service zones. An analysis of the geographical and geo-traffic position of Slavonski Brod is given, followed by an analysis of the volume and characteristics of the traffic flow on the A3 motorway as well as an analysis of available accommodation capacities and realized tourism flows (tourist arrivals and overnights) in Slavonski Brod. The required expert assessment is based on the analysis of secondary data sources, available research and gained knowledge. The expert assessment suggests the launch of further activities related to the restoration and completion of the motel facility within the service zone Marsonija - south, and is based on the following foundations: a favorable geographic and geo-traffic location, existing traffic demand on the A3 and the observed trends, a favorable competitive environment, favorable micro location, and existing and future local and tourist demand for Slavonski Brod. In addition to the expert assessment, the recommendations for the restoration and completion of the facility within the service zone Marsonija - south are given.