The assessment procedures of city logistics scenarios require the simulation of freight transport demand and hence the estimation of freight vehicle origin-destination (O-D) flows. These O-D flows can be obtained from the simulation of delivery tours. Therefore, the paper recalls a system of models able to simulate delivery tours using an aggregate approach proposed by the authors and presents the propaedeutic analysis for setting up such a tool. The data come from a dataset of commercial vehicles operating in the Veneto Region (Italy) for which floating car data (FCD) of 60 operating-days were available. The analysis allowed us to investigate the current patters of delivering tours and to point out some evidences on which models for delive...