Well, yes there is, and yes there is. I suspect you are trying to be too precise.
First, the switch nearest the starting end of the bridge is the on-off switch.
The others are for slowing down the segments. Go to the second segment, and try the switch, until you think you are somewhere close. Don't try to get it perfect. Then, go to the on-off switch and give it a test.
If, the bridge comes to a halt, and the first and second segments align correctly, you did it. Move on to the third. And the next. Etc.