Method for optimal vertical alignment of highways

This paper presents a methodology to consider vague soil parameters required for earthwork optimisation, and to develop a genetic algorithm-based constrained curve-fitting technique required for highway vertical alignment process. The weighted ground line method is an earthwork optimisation methodology based on a hypothetical reference line and taking into account three soil properties to calculate realistic cut–fill volumes, namely swelling potential, compactibility percentage, and material appropriateness percentage. In this study, fuzzy rule-based inference methodology, which utilises previous experiences that can be expressed with linguistic terms, is employed to characterise swelling/shrinkage behaviour. In addition, material appropriateness concept is also adopted into developed optimisation methodology by a parametric algorithm using technical specifications and geotechnical data. Consequently, the genetic algorithm approach is employed for the determination of final grade line considering weighted...

[1]  T. Ross Fuzzy Logic with Engineering Applications , 1994 .

[2]  T. Fwa,et al.  SIMULTANEOUS OPTIMIZATION OF HORIZONTAL AND VERTICAL ALIGNMENTS FOR HIGHWAYS , 1989 .

[3]  Donald P. Coduto,et al.  Geotechnical Engineering: Principles and Practices , 1998 .

[4]  P. Schonfeld,et al.  An evolutionary model for simultaneously optimizing three-dimensional highway alignments , 2003 .

[5]  Jocelyn F. B. Shaw,et al.  Expressway Route Optimization by OCP , 1982 .

[6]  Alan J. Nicholson A variational approach to optimal route location , 1976 .

[7]  Ebrahim H. Mamdani,et al.  An Experiment in Linguistic Synthesis with a Fuzzy Logic Controller , 1999, Int. J. Hum. Comput. Stud..

[8]  Weng Tat Chan,et al.  Backcalculation Analysis of Pavement-Layer Moduli Using Genetic Algorithms , 1997 .

[9]  Selim Altun,et al.  Fuzzy Decision Support System to Determine Swell/Shrink Factor Affecting Earthwork Optimization of Highways , 2008 .

[10]  Manoj K. Jha CRITERIA-BASED DECISION SUPPORT SYSTEM FOR SELECTING HIGHWAY ALIGNMENTS , 2003 .

[11]  W. C. Kvaraceus,et al.  Principles and Practices , 2006 .

[12]  Simon Smith,et al.  A new earthworks estimating methodology , 2000 .

[13]  Lawrence. Davis,et al.  Handbook Of Genetic Algorithms , 1990 .

[14]  John G. Schoon Geometric Design Projects for Highways: An Introduction , 1993 .

[15]  Yasser Hassan,et al.  Design Considerations for Combined Highway Alignments , 1997 .

[16]  Anneli Folkesson,et al.  Numerical methods for engineers , 2007 .

[17]  Yahachiro Tsukamoto,et al.  AN APPROACH TO FUZZY REASONING METHOD , 1993 .

[18]  Ram B. Kulkarni,et al.  DECISION ANALYSIS OF ALTERNATIVE HIGHWAY ALIGNMENTS , 1993 .

[19]  Robert W Hayman OPTIMIZATION OF VERTICAL ALIGNMENT FOR HIGHWAYS THROUGH MATHEMATICAL PROGRAMMING , 1970 .

[20]  Steven C. Chapra,et al.  Numerical Methods for Engineers , 1986 .

[21]  Said M. Easa,et al.  Selection of roadway grades that minimize earthwork cost using linear programming , 1988 .

[22]  Paul Schonfeld,et al.  INTERSECTION MODELING FOR HIGHWAY ALIGNMENT OPTIMIZATION , 2004 .

[23]  Jeff R. Wright,et al.  Civil And Environmental Systems Engineering , 1996 .

[24]  J. C. Jong,et al.  Optimizing Highway Alignments with Genetic Algorithms , 1998 .

[25]  Dan Trietsch,et al.  Comprehensive Design of Highway Networks , 1987, Transp. Sci..

[26]  Michio Sugeno,et al.  Fuzzy identification of systems and its applications to modeling and control , 1985, IEEE Transactions on Systems, Man, and Cybernetics.

[27]  Ahmad A. Moreb,et al.  Linear programming model for finding optimal roadway grades that minimize earthwork cost , 1996 .

[28]  Yasser Hassan,et al.  State-of-the-art of three-dimensional highway geometric design , 1998 .

[29]  A. Hilmi Lav,et al.  Method for Balancing Cut-Fill and Minimizing the Amount of Earthwork in the Geometric Design of Highways , 2003 .

[30]  T. F. FwA,et al.  HIGHWAY VERTICAL ALIGNMENT ANALYSIS BY DYNAMIC PROGRAMMING , 1989 .

[31]  Weng Tat Chan,et al.  OPTIMAL VERTICAL ALIGNMENT ANALYSIS FOR HIGHWAY DESIGN , 2002 .

[32]  Ek Peng Chew,et al.  Discrete and continuous models for computation of optimal vertical highway alignment , 1988 .

[33]  A. Burak Göktepe,et al.  Method for Optimizing Earthwork Considering Soil Properties in the Geometric Design of Highways , 2004 .

[34]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[35]  Bernard E. Howard,et al.  Optimum Curvature Principle In Highway Routing , 1968 .

[36]  Paul Schonfeld,et al.  Intersection Construction Cost Functions for Alignment Optimization , 2004 .

[37]  Eungcheol Kim,et al.  A Stepwise Highway Alignment Optimization Using Genetic Algorithms , 2003 .

[38]  Yusin Lee,et al.  OPTIMIZING HIGHWAY GRADES TO MINIMIZE COST AND MAINTAIN TRAFFIC SPEED , 2001 .