TY JOUR TI FORMATION OF SAINT-PETERSBURG AGGLOMERATION IN THE XVIII CENTU-RY KW St. Petersburg Province KW “ideal” St. Petersburg and “ideal” St. Petersburg agglomeration KW sub-agglomeration KW spatial environment KW formed on the principles of regular planning and development. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Semencov, S.V. AU Akulova, N.A. PY 2018 IS 3 PB Belgorod State Technological University named after V.G. Shukhov