Provides miles of track and roadway and counts of special track work elements operated on by each agency, mode, and type of service, organized into categories by its physical characteristics.

Keywords: tangent, curve, revenue service, no capital replacement responsibility, non-service, under performance restriction, single turnout, grade crossing, single crossover, double diamond, half grand union, exclusive, fixed guideway, high-intensity busway, controlled access, transit asset management, tam, asset inventory module, aim, title 49 part 625