Remaking of the Ridley Keystone & Mountain

[tompm]

Thanks Matt.

Due to location of Union Station's platforms having a grade crossing near them is not aa good idea. Instead of the grade crossing I will need a grade separation. Getting road under the tracks is going to require some thought. In the real world the PRR lowered many roads under the tracks or built a roadway bridge over the tracks. I feel a bridge over the tracks won't work here. That leaves going under the tracks. However there is not enough room to get a reasonable grade on the road in the space available. This became a dilemma. After some thought I looked at the real world where a auto tunnel went under buildings. I came across the Spring Garden Street tunnel under the Philadelphia Art Museum. The tunnel was built for the Route 43 trolley. When the trolley was converted to bus the tunnel became an automobile tunnel.