Turnout Drift Operating Envelope Calculation
The purpose of the Turnout Drift Operating Envelope Calculation is to identify the design parameters of the typical turnout drift and advance the preliminary design of the typical turnout drift. The scope of this calculation requires the turnout drift geometry be identified in sufficient detail to provide input to develop a typical turnout drift design. This turnout drift design strategy will be used to develop a preliminary turnout drift design for each distinct grouping of turnout drift type. The calculation will define the operating envelope of the relevant interfaces such as the turnout drift invert and the ventilation door. Thismore »