Complex sentence: The highway if extended east to the Garden State Parkway would provide a much needed bypass of Route 47; as it stands Route 83 is a lightly traveled two-lane road that does not serve as a very important link.
Split into simpler sentences: The highway if connected with the Garden State Parkway would provide a much needed bypass of Route 47. As it stands Route 83 is a lightly traveled two lane road that doesn't serve as a very important link.