Complex sentence: In 1965 the people of South Chicago were growing tired of the traffic jams on Lake Shore Drive, so the city made plans to widen the road, straigten its curves and run it straight through Jackson Park.
Split into simpler sentences: In 1965 the people of South Chicago were growing tired of the traffic jams on Lake Shore Drive. So the city made plans to widen the road, straigten its curves and run it straight through Jackson Park.