Complex sentence: The project was cancelled because of the high cost and transport planners turned to light rail as a lower-cost option and the two stations were linked by the Manchester Metrolink system opened in the early 1990s.
Split into simpler sentences: The project was cancelled because of the high cost and transport planners turned to light rail as a lower-cost option. As a result, the two stations were linked by the Manchester Metrolink system opened in the early 1990s.