Hi Jay...Here is a sketch of my layout...The black lines are main lines, the green line is a second level and the red lines are my trolley lines. Before I removed the switches all the black and green and #2 and #3 lines were connected.
#1 red line starts at my elevated Bellerose trolley station and climbs to a 3rd level on one track as a bump and go line..#2 is one continuous oval and I can run several trolleys at once, I really like running two or three trolleys at once. The only problem is that none of the trolleys run at the same speed and they bump into each other, sort of like a Key-Stone Cop movie. #3 is a bump and go trolley that runs through the city.