Complex sentence: The proposed freeway standard road was to start at the Western Ring Road at Laverton North, connect with Market Road, Brooklyn, then descend into two separate three-lane tunnels at Kingsville, to link with the Eastern Freeway.
Split into simpler sentences: The proposed freeway standard road was to start at a junction with the Western Ring Road at Laverton North. It was to connect with Market Road, Brooklyn, then descend into two separate three-lane tunnels at Kingsville, to link with the Eastern Freeway.