Railroad crossings, turnouts and other metal railroad track components are under considerable stress nowadays due to the heavier axle loads of enormous locomotives and longer trains. Eventually inserts, frogs and rail sections all have to be replaced. Often the drawings that engineering has to work with do not give enough information for the fabrication of the needed components.
The geometry of a diamond crossing looks simple enough untill you try to calculate lengths of bent rails and bend angles. Even figuring out the lengths of tie bolts can be a nightmare.
If you have a new diamond crossing to build or if you need to rebuild any railroad track components please consider AAA Drafting for the drafting of the rails, inserts and other components.