A new development blog has been posted about the upcoming Raise and Lower Road Tool! This new tool will be available in Update 7 which releases tomorrow.
Hello, Mayors! I’m Guillaume Pierre, the lead gameplay scripter on SimCity, and today I’m presenting the raise/lower road tool. This tool allows for the easy creation of bridges and tunnels, along with trench roads and roads on retaining walls. Let me explain how it works. When drawing a road using the straight, arced or curvy tools, you can press the M key to raise the segment by 6 meters per key stroke. Note that the end points of the road segment do not go up, but stay at their respective original ground positions.