You can use stairs and ledges to the same effect.
There are some big rooms with stairs and ledges going up along the walls, I use these to shake off the mobs.
Just run up the stairs, wait a bit so they all are running up the stairs then jump over the railing on the top and run out of the room. The mobs will start to run down the stairs.
Oh, did I say that I love the mission layout?
Nice big rooms and hallways where you can kite the big nasty mobs, like slayerdroids.