Try making a road bridge (or tunnel) by building a long straight road and then hitting either the ‘n’ or ‘m’ keys to raise/lower the central part of the road. You can build tunnels under large stations or railway junctions. This way you don’t have to destroy any tracks to add road crossings.
If you like transport simulation games and have enough money to buy it, I’d definitely recommend it. The issues that many people have been posting about aren’t preventing me from enjoying the game.