Complex sentence: Throughout the 1970s the Doncaster line was planned by the state government to run down the middle of the Eastern Freeway and serve the suburb, with land acquired for the line but sold in the 1980s.
Split into simpler sentences: Throughout the 1970s, the Doncaster line was planned by the state government to run down the middle of the Eastern Freeway and serve the suburb. Land was acquired for the line but sold in the 1980s.