learn to use Move It!. To avoid ghost intersections, you may intentionally build the opposite direction of a CSUR road (i.e., a group of lanes , in CSUR terms), ramps, or whatever road modules, towards elsewhere other than the same node . Then, use Move It! to drag the node back to where it is meant to be. In this way, you avoided creating any nodes between unwanted road modules, thus avoiding ghost intersections.

try to be more foresighted and keep a blueprint in mind before you build.

Note that despite the apparent off-the-centre-line feature of certain CSUR modules, at the code level of the game, the 3D models of CSUR modules off-the-centre (e.g., the ramps) are consistent with the actual game building behavior! This may be a little complicated and confusing at first glance. To put it simply, What You See Is What You Get . You should always point your mouse cursor at the 3D model of the road module that you want to connect at the moment. If you want to connect to the ramp, then select your ideal road module via the road panel and point exactly at the ramp before you click the mouse.

Thus, you should try your best to envisage the interchange before you practically build it in-game . It just sounds so close to a real engineer's job in real life, isn't it! So difficult! But there aren't any useful tricks as far as I can offer you except for this: Practice makes perfect.