I planned to run two parallel sidings between buildings on a project, and am not sure there is enough room. How many
feet beween outside rail to outside rail would the prototype have used between the sidings, and how many between outside rail and buildings? This would require one of those "No man on side of car" signs, as well as a hanging tunnel warning as tracks will be crossed by pipes between buildings. I am pretty sure Ross does not offer one of these overlapping sections in three rail where, on the prototype, parallel tracks were overlapped to get across a narrow bridge.