Performance Optimised Geometry of Railway Crossings: Design and Implementation

The paper presents an optimisation procedure for improvement of crossing performance by adjusting the cro sing (including the wing rail) geometry. The improvement of the crossing performance is achieved by reducing the normal contact pressure and wear index, while shifting the location of the wheel impact (fatigue area) along the crossing. By...

Robust optimisation of railway crossing geometry

This paper presents a methodology for improving the crossing (frog) geometry through the robust optimisation approach, wherein the variability of the design parameters within a prescribed tolerance is included in the optimisation problem. Here, the crossing geometry is defined by parameterising the B-spline represented cross-sectional shape and...