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Transition zone have a different track stiffness according to the various kind of railway track substructure. While trains passing through side of lower stiffness will cause settlement, which will affect the wheel-rail impact force. This force is the main cause of deterioration lead to damage of the railway so these areas require special maintenance, that resulting in expensive cost. However, the appropriated rail improve techniques will reduce the deterioration of railways and cost of maintenance. The improvement techniques, mechanical properties, related standards, and case studies from the State of Railway of Thailand are investigated in this article. The comparative study results obtained can be applied as a guideline for performance enhancement of the railway transition zone effectively.
 Quirchmair, M., & Loy, H. (2015). Managing Track Stiffness in Transition Zones. Railway Gazette International.
 Quirchmair, M., & Loy, H. (2016). Optimization at track transition zones by specially engineered PU pads. Rail Business[Focus-India].
 COELHO, E. Z. (2011). Dynamics of railway transition zones in soft soils. (Doctor), University of Porto, Portugal, Portugal.
 Optimisation of Transition Zones. (2016). In gatzner (Ed.).
 Cristina Alves Ribeiro, Rui Calçada, & Delgado, R. (2017). Experimental assessment of the dynamic behaviour of the train-track system at a culvert transition zone. Engineering Structures, 138 215–228.
 SHAHBAZ RASHID. (2011). Parametric study of bridge response to high speed trains : Ballasted track on concrete bridges. (Master of Science Thesis), KTH Royal Institute of Technology, Stockholm, Sweden
 Sañudoa, R., dell’Olio, L., Casado, J. A., Carrascal, I. A., & b, S. D. (2016). Track transitions in railways: A review. Construction and Building Materials, 112, 140–157.
 Sañudoa, R., Miranda, M., Markine, V., & dell´Olio, L. (2016). The Influence of Train Running Direction and Track Supports Position on The Behaviour of Transition Zones. Transportation Research Procedia, 18, 281 – 288. doi:10.1016/j.trpro.2016.12.037
 Y.S.Kang, Yang, S. C., Lee, H. S., Kim, Y. B., Jang, S. Y., & Kim, E. (2014). A Study of Track and Train Dynamic Behavior of Transition Zone Between Concrete Slab Track and Ballasted Track.
 Inmculada Gallego, Santos Sánchez-Cambronero, & Rivas, A. (2012). Criteria for Improving the Embankment- Structure Transition Design in Railway Lines. Infrastructure Design, Signalling and Security in Railway, 355-374.
 Roberto Sañudo, Mikel Cerrada, Borja Alonso, & dell’Olio, L. (2017). Analysis of the influence of support positions in transition zones. A numerical analysis. Construction and Building Materials, 145, 207–217.
 Ngoc Trung Ngo, & Buddhima Indraratna. (2016). Improved Performance of Rail Track Substructure Using Synthetic Inclusions: Experimental and Numerical Investigations. Int. J. of Geosynth. and Ground Eng., 2(24). doi:10.1007/s40891-016-0065-3
 José N. Varandas, Paul Hölscher, & Manuel A.G. Silva. (2011). Dynamic behaviour of railway tracks on transitions zones. Computers and Structures, 89, 1468–1479.
 Yohannes, T. (2015). Effect of Track Stiffness Variation on the Dynamic Response of Passenger Vehicle. Addis Ababa University.
 Coenraad Esveld. (2001). MODERN RAILWAY TRACK (Second Edition ed.). Delft University of Technology: MRT-Productions,Netherlands.
 Selig, E. T., & Waters, J. M. (1994). Track geotechnology and substructure management.
 Coenraad Esveld. (2010). Recent Developments in High-Speed Track. First International Conference on Road and Rail Infrastructure, Croatia.
 Timothy D. Stark, Stephen T. Wilk, & Rose, J. G. (2016). Design and Performance of Well-Performing Railway Transitions. Transportation Research Record: Journal of the Transportation Research Board. doi:10.3141/2545-03
 Giannakos, K. and S. Tsoukantas, Transition Zone between Ballastless and Ballasted Track: Influence of Changing stiffness on acting forces. SciVerse ScienceDirect, 2012. 48: p. 3548-3557.
 Real, T., Zamorano, C., Hernández, C., García, J. A., & Real, J. I. (2016). Static and Dynamic Behavior of Transitions between Different Railway Track Typologies. KSCE Journal of Civil Engineering, 20(4), 1356-1364.
 Eric Berggren. (2010). Railway Track Stiffness Dynamic Measurements and Evaluation for Efficient Maintenance. (Doctoral Thesis), KTH Engineering Science.
 Sakdirat Kaewunruen. (2015). Impact damage mechanism and mitigation by ballast bonding at railway bridge ends. The International Journal of Railway Technology. doi:10.4203/ijrt.3.4.x
 Luís Miguel Gouveia Coelho. (2015). Structure/Embankment Transitions in Railway Infra-structures Behaviour and National and International Practices. Universidade Técnica de Lisboa - Instituto Superior Técnico, P-1049-1001.
 Powrie, W. (2015). Understanding and improving the track system. Railway Gazette International.
 Li, D., D. Otter, et al. (2010). Railway bridge approaches under heavy axle load traffic: problems, causes, and remedies. Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit, 224(F5), 383-390. doi:10.1243/09544097jrrt345
 Li, D. Q., & D. Davis. (2005). Transition of railroad bridge approaches. Journal of Geotechnical and Geoenvironmental Engineering, 131(11), 1392-1398.
 Mishra, D., E. Tutumluer, et al. . (2012). Investigation of differential movement at railroad bridge approaches through geotechnical instrumentation. Journal of Zhejiang University-Science A, 13(11), 814-824. doi:10.1631/jzus.A12ISGT7
 Yao Shan, Bettina Albers, & Savidis, S. A. (2013). Influence of different transition zones on the dynamic response of track–subgrade systems. Computers and Geotechnics, 48, 21-28.
 Wehbi, M., Burrow, D. M., Ghatoara, D. G., & Shi, D. J. (2013). Investigating the Effects of Soft Spots on the Functional and Structural Condition of a Railway Track.
 Dahlberg, T. (2010). Railway Track Stiffness Variations – Consequences and Countermeasures. International Journal of Civil Engineerng, Vol. 8(No. 1).
 UIC-719-R. (2015a). Earthworks and track bed construction for railway lines leaflets and Reports (pp. 114).
 Nimbalkar S, & B, I. (2016). Improved performance of ballasted rail track using geosynthetics and rubber shockmat. J Geotech Geoenviron Eng, 142(8).
 Lakusˇi S, Ahac M, & I, H. (2010). Experimental investigation of railway track with under sleeper pad. Proceedings of the 10th Slovenian road and transportation congress, 386–393.
 Auersch L. (2006). Dynamic axle loads on tracks with and without ballast mats: numerical results of three-dimensional vehicle–track–soil models. Proc Inst Mech Eng F, 220(2), 169–183.
 Quirchmair, M. (2016). Elasticity in Railway Superstructure: Managing Track Stiffness in Transition Zones and Turnouts.
 Kerr, A. D., & B. E. Moroney. (1993). Track Transition Problems and Remedies. American Railway Engineering Association, 742, 267–298.
 Lund, H., & Åswärdh, A. (2014). Transition zones between ballasted and ballastless tracks. Lund University.
 UIC-719-R. (2015b). Earthworks and track bed construction for railway lines, UIC leaflets and Reports (pp. 114).
 Read, D., & Li, D. (2006). Design of track transitions. TCRP Research Results Digest, 79.
 Zhao, C., Wang, P., Yi, Q., & Meng, D. (2015). Application of Polyurethane Polymer and Assistant Rails to Settling the Abnormal Vehicle-Track Dynamic Effects in Transition Zone between Ballastless and Ballasted Track. Hindawi Publishing Corporation, Shock and Vibration(Article ID 826362), 9. doi:https://dx.doi.org/10.1155/2015/826362
 AREMA. (2005a). Plan 913-52 Portfolio of Trackwork Plans.