Complex sentence: In the original 1950s Kiev metro plans, the northwest-southeast Syretsko-Pecherska Line was not foreseen, and therefore no space was left for a transfer station on the Sviatoshysnko-Brovarska line.
Split into simpler sentences: In the original 1950s Kiev Metro development plans, the northwest-southeast Syretsko-Pecherska Line was not foresee. Therefore, no space was left for a transfer station on the Sviatoshynsko-Brovarska line.