Application of the offered methodology of the costs assessment of customer service for transportation of small perishable cargoes in urban areas makes it possible to choose the rational brand and cargo capacity of the truck, depending on the number of delivery locations in conditions with constantly changing demands for transportation services. The developed mathematical and imitation models allow simulating the process of small perishable cargoes delivery in urban areas at rendering transportation service to small cargo customers, including the service of retail chain shops, hotel and restaurant businesses. These models allow for quickly estimating the specific expenses for perishable cargoes delivery depending on price values and technological parameters. The methodology is of interest for practical use for PL-forwarders at the assessment of possible transport costs in conditions of the constantly changing demand for transport services, as well as for customers (malls, restaurants, hotels, mini-markets) of small perishable cargoes.