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Surface Optimization

Optimal vertical alignment via approximation

Surface optimization
Surface optimization
  •  Definition of a surface target cross-section
  • Definition of a desired height corridor for the surface target cross-section relative to an existing cross-section, the ideal line may run midway in the corridor but can also be one of the corridor boundary lines. In the latter case the calculated values must not fall short of the set values, thus the  minimum overlay thickness is guaranteed
  • Definition of the route design value limits
  • An optimal vertical alignment is found from numerous variations via a genetic algorithm:
    • New records of tangent intersection points are repeatedly generated
      via random generator and evolutionary principles
    • Optimal vertical curves are added to each generation of tangent intersection points taking the route design parameters into account
    • Based on a priority sequence each vertical alignment is compared to the best vertical alignment found up to that point. At the end of the approximation you are provided with the optimum vertical alignment

Excellent on-screen check

Surface target cross-section
Surface target cross-section
  •  Different simultaneous views provide excellent overview: longitudinal profile including dockable string windows, e.g. curvature strings and cross-fall strings, cross-sections
  • Comprehensive documentation of the optimization results via on-screen checks and reports on the start data. You are notified whenever the defined value limits have been exceeded or fall short

Module prerequisites

none

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