Complex sentence: The early 20th century saw an increase in popularity of automobiles, resulting in large-scale suburban expansion, and today it has an extensive network of freeways and arterial roadways used by private vehicles including freight as well as public transport systems including bus and taxis.
Split into simpler sentences: The early 20th century saw an increase in popularity of automobiles, resulting in large-scale suburban expansion,. Today it has an extensive network of freeways and arterial roadways used by private vehicles including freight as well as public transport systems including bus and taxis.