We analyzed the development of domestic transport tourism aimed at the formation of a comfortable well-developed transport infrastructure, which will be based on road service facilities exclusively as part of multifunctional zones (MFZ). We reviewed the layout of the new existing MFZ and MFZ under construction, we as well identified facilities that have an adverse impact on the environment, the surrounding area and human health. In this article we present a multi-criteria analysis of the factors influencing the spread of harmful substances from gas stations which allows assigning an environmental safety class to gas stations. We substantiated the necessity of assessing the environmental safety of individual facilities and as a whole the MFZ of the road service of transport tourism. We also develop here a methodology to assess the level of the MFZ's impact on the environment and suggest a certain list of measures to reduce its negative impact.