Region Sörmland is concerned about the capacity of the railway section that will connect the future high-speed railway Ostlänken with Nyköping. The fact that the branch line is partly single-track limits traffic and planning, according to the region in a draft opinion to be decided by the regional board on Tuesday.

They want to see an increase in the traffic day to meet the needs of travel around the clock. For example, with departures from Stockholm after midnight and arrival in Stockholm before six o'clock in the morning.