Introduction In recent years, attention to the impact of stability indices on transportation, especially in the public sector, has been among the main approaches to assess urban transport systems. This is an important issue, because nowadays we see that most of urban public spaces and streets are heavily dominated by cars due to the complete dependence of people's lifestyle on the automobiles and, hence, the related spaces are of low quality. Therefore, moving towards stability requires the knowledge on the priority and position of the elements of the transportation system in relation to stability indices. In this regard, this research addresses the assessment of stability indices in Kermanshah urban transportation with the aim of prioritizing the ideal options in the transportation system of this city. This paper focuses on public transportation practices. To achieve this goal, four systems of public transportation, i. e. taxis, buses, monorail and walking have been evaluated via 20 indices in the economic, social, physical and environmental aspects. ...