 The total number of seats was often varied during the production run; also, during overhauls some of the seats were often removed to increase the amount of standing room and thereby the total passenger capacity.Intermediate trailer and power cars typically have 107-110 seats, and driving trailers 77-88 seats; a 10-car train has up to 1050 seats in all and a total passenger capacity of up to 1600 people.The passenger salon is separated by sliding double doors from vestibules on either end of the car, which have pneumatically-operated sliding double doors for entry and exit of passengers.