Investigation of a New Transition Curve
Abstract
This paper describes derivation of the curvature change for the transition curve in a 2nd degree increasing concave formulation. The investigation of the usability of the developed transition curve in new designs and rehabilitation of existing roads are also included in this study. New transition curves are compared with the most used transition curves (clothoid, sinusoidal and bloss) in highways, and it has been targeted to indicate whether it is the most economic and comfortable one or not.
Keywords: |
highway; transition curve; curvature; superelevation; clothoid; bloss; sinusoidal
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References
Can, E.; Kuşçu, Ş.; Şahin, H. 2005. Evaluation of New Generation Transition Curves for Highways [Harita ve Kadastro Mühendisleri Odası, Mühendislik Ölçmeleri STB Komisyonu 2. Mühendislik Ölçmeleri Sempozyumu], in The Proc. of the 2th National Symposium on Engineering Measurements [Union of Chambers of Turkish Engineers and Architects Chambers of Survey and Cadastre Engineers]. November 23–25, 2005, İstanbul, Turkey, 177–186.
Crews, Nathan. 2009. Transition Curves in Road Design, and Development Civil, Survey Professionals [online]. [Cited 1 March 2009]. Available from Internet:
Dell’Acqua, G.; Russo, F. 2010. Speed Factors on Low-Volume Roads for Horizontal Curves and Tangents, The Baltic Journal of Road and Bridge Engineering 5(2): 89–97. doi:10.3846/bjrbe.2010.13
Gintalas, V.; Žilionienė, D.; Dimaitis, M.; Lukošaitis, D.; Lipnevičiūtė, K.; Vitkienė, J. 2008. Analysis of Design Solutions in the Objects of Gravel Roads Paving Programme in Terms of Traffic Safety, The Baltic Journal of Road and Bridge Engineering 3(2): 93–100. doi:10.3846/1822-427X.2008.3.93-100
Jeffrey, A.; Dai, H. H. 2008. Handbook of Mathematical Formulas and Integrals. 4rd edition. Academic Press. 592 p. ISBN 0123742889.
Kuloğlu, N. 1988. Investigation of the Transition Curves for Highways. PhD thesis, F. Ü, Elazığ, Turkey.
Meek, D. S.; Walton, D. J. 2004a. A Note on Finding Clothoids, Journal of Computational and Applied Mathematics 170(2): 433–453. doi:10.1016/j.cam.2003.12.047
Meek, D. S.; Walton, D. J. 2004b. An Arc Spline Approximation to a Clothoid, Journal of Computational and Applied Mathematics 170(1): 59–77. doi:10.1016/j.cam.2003.12.038
Pirti, A. 2009. The Fourth Degree Parabola as Transition Curve, Union of Chambers of Turkish Engineers and Architects Chambers of Survey and Cadastre Engineers, Journal of Geodesy, Geoinformation and Land Management 101: 31–39. ISSN: 1300-3534.
Walton, D. J.; Meek, D. S. 2005. A Controlled Clothoid Spline, Computers & Graphics 29(3): 353–363. doi:10.1016/j.cag.2005.03.008
DOI: 10.3846/bjrbe.2011.04
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