Complex sentence: Some residential frontage and considerable commercial frontage exists in the fairly congested section east of Highway 417, where Innes widens to six lanes up to Blackburn Hamlet and then becomes a divided four-lane road.
Split into simpler sentences: Some residential frontage and considerable commercial frontage exists in this fairly congested section. On the east side of Highway 417, Innes widens to six lanes up to Blackburn Hamlet and then splits into a divided 4 lane road.