Decision Support System to Improve Railway Track Maintenance Using Track-Quality Index (TQI)

Main Article Content

Thawatchai Phanyakit
Thaned Satiaenam


       In recent years, studies on track degradation in railways have attracted a great deal of attention. Intensive research activities have been carried out by many organizations with the aim of securing a high level of safety and reliability of the infrastructure system. New technologies and stringent safety standards are constantly being introduced for several reasons, not only to prevent the assets from failure or damage but also to minimize the main sources of problems associated with the performance degradation in terms of quality, comfort and safety of each journey. Following these shortcomings, this research aims to develop a logical model for the deterioration of track geometry and to incorporate the proposed model as basis for optimizing maintenance in practice. For the purpose of analysis, a segment of Northeastern line from Thanon Chira junction to Nong Khai station comprising 320.900 km. and 35 stations, in length will be considered and multivariate statistical analyzes will be employed in some geometric parameters. The results will be used to derive the optimization model for scheduling track maintenance by means of tamping in a given period of time.

Article Details



[1] Office of the National Economics and Social Development Board. Report on infrastructure status in Thailand B.E. 2554. Bangkok; 2011.

[2] Dahlberg T. Railway track settlements – a literature review. Report for the EU project super-track, Division of Solid Mechanics, Linköping: Linköping University; 2003.

[3] Bing AJ, Gross A. Development of railway track degradation models. Transport Res Rec.1983; 939:27-31.

[4] Office of Transport and Traffic Policy and Planning, Thailand. Maintenance manual Railway structure. Bangkok; 2018.

[5] Cacho M. Manutencao e conservacao em fias–ferreas:o caso da via alfarelos–figuera da foz. Licienciatura thesis. Civil Engineering Department, University of Coimbra; 2009.

[6] Oyama T, Miwa M. Mathematical modeling analysis for obtaining an optimal railway track maintenance. Jpn J Ind Appl Math. 2006; 23(2):207-224.

[7] The State Railway of Thailand (SRT). Track maintenance manual. Bangkok: 1964.

[8] Ferreira L, Murray M. Modelling rail track deterioration and maintenance current practices and future needs. Transport Rev. 1997; 17:207-221.

[9] Freight Service Department, State Railway of Thailand, Report on Weight and Train through the Railway 2007-2016.Bangkok; 2017.