Complex sentence: The highway was first paved in the 1950s with many upgrades in recent decades; there have been preliminary discussions about making the highway a four-lane expressway, particularly since the abandonment of rail service in the province.
Split into simpler sentences: The highway was first paved in the 1950s with many upgrades in recent decades. There have been preliminary discussions about making the highway a four-lane expressway, particularly since the abandonment of rail service in the province.