sentences:  By the late 1980s, the Mitchell Freeway, along with major arterial routes servicing the northern corridor, were constantly clogged during peak hour, with the community at large dissatisfied with the bus services provided for the region.The government of the day, after a strong political push, decided to plan and construct a rail service, to known as the Northern Suburbs Rapid Transit System.It was aimed at restructuring the bus network for the northern corridor, while going some way to reduce car dependence in Perth.