[Experience in sanitary and hygienic support of construction and upkeep of railroads in Northern and Siberian regions].

The article stresses that railway hygiene has accumulated vast experience in evaluation of working environment of railway construction workers in severe climate conditions, thorough hygienic characteristics cover the main construction occupations and the exploitation staffers. The research helped to elaborate variety of hygienic regulations on occupational hygiene and work schedules for railway construction workers, on hygienic basis of the workers' everyday life in severe climate conditions.