Evolutionary Development of the Master Plan of Russian Fortresses, for Example, the City of Orenburg

The article analyzes and establishes the main features of the planning development of the strategically important for Russia city of Orenburg, located on the border of the country with Kazakhstan and serving as an outpost since its foundation in the middle of the XVIII century. The author outlines the characteristic features of the evolution of the city's master plans: all city plans (from the middle of the eighteenth to the beginning of the 19th century) were considered, development of town-planning principles of classicism, which became the basis for further development of the city, continues to this day.