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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Applications of Power Rail Track Program to Tracings of Brazilian Railways
Author(s)
Sonia Janneth Rosero Muñoz, Mhileizer Arielys Toledo Arenas, Diógenes Cortijo Costa and Cassio Eduardo Lima de Paiva
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DOI:10.17265/1934-7359/2016.04.013
Affiliation(s)
Department of Civil Engineering, University of Campinas, São Paulo13209201, Brazil
ABSTRACT
In Brazil, the use of software and applications in railway geometric
designs is rare. Currently, after the division and privatization of the
national rail network, the concessionaires who assumed the administration, are
investing in modernization, recovery and extension of this transport model to
make it more efficient. The PIL (Program of Investment in Logistics) has
generated growth of the sector in response to the amount of investments,
greatly enhancing the load capacity and optimizing the geometric design, which
would allow speed of 80 km/h. Based on this
information, the objective of this research is to verify the software applications
of Power Rail Track Program of Bentley Systems, Inc. for geometric designs in
future deployments of railways in Brazil. This software is based on numerical
calculations, including roller adjustment by the least squares method to
calculate and choose the best alignments, and regression tools, to a fast and
effectively optimization of various parameters of the geometry for a future or
existing railway. Different variables
that allow you to optimize the geometric design are analyzed, considering several
optional alignments and complex restrictions present in geometric design,
taking into account variables such as circular curves, transition, tangents and
rays. The software regression tools include curvature diagrams identifying
points and curves, tangent and spirals. The analysis results are presented
quickly and points can be added or deleted from the regression analysis,
providing improved tracing. The software also allows to detail the elements of
the executive project of the railway line such as rails, joints, turning
points, waypoints and others. The result of this
study has shown that the application of the Power Rail Track Program generates
significant cost savings in time and increases in productivity, providing
greater opportunity to optimize the geometry and reducing geometric design
costs.
KEYWORDS
Geometric design, railways, optimization, software, geometric tracing.
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