How do I create roadway elevations such as slopes and hills?
A. The number one item to be used is Points. Think of them as Dot-to Dots from the old color books. Place the points or markers at exact distances and angles using the Easy Lines feature. Once the points are placed, use the 3D Builder to add the desired elevation to the points. Now you have two choices: 1) Use any of the Draw commands to snap a line, curve, arc, etc, to the points. The Draw commands will follow the 3D value of the points and take on the x,y and z values. This is a neat feature as you can change the line type to a guardrail barrier and have it follow the slope of the points placed. 2) Use the Easy Surface command and following the commands prompts, snap to three consecutive 3D points (the TIN process again) to build a 3D surface that follows the 3D values of the points you are snapping to. (Then you could go back and place the special line types mentioned above so you create an object on top of a sloped roadway). Next, use the 3D Align to Plane commands to place vehicle