@article{article_684336, title={Evaluation of the Track Geometry Quality with Standard Deviation Method and Quality Indices: Case study of Kütahya-Afyonkarahisar Railway Line}, journal={Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi}, volume={20}, pages={1068–1078}, year={2020}, DOI={10.35414/akufemubid.684336}, author={Yalınız, Polat and İça, Sezgin}, keywords={Railway, Alignment, Longitudinal Level, Track Geometry Indices, Track Geometry Quality}, abstract={In this paper, a specific part of the railway line between Kütahya and Afyonkarahisar cities was investigated. The track geometry parameters alignment, cant, longitudinal level, track gauge and twist investigated at this track section in accordance with the related standard EN:13848-5 and evaluations conducted about the track geometry defects. A fatal train accident occurred on the Kütahya-Afyonkarahisar railway line in 2008, besides the line was completely renewed in 2013. For this reason, measurements were carried out by the help of track geometry measuring devices on the Kütahya-Afyonkarahisar railway line having the opportunity to compare the improvements at the track geometry quality, within four years period. Owing to measurements performed on the track section, improvements, degradations and degradation trends were determined using the standard deviation method mentioned in the standard EN:13848-5. In addition, the effects of the track renewal performed on the railway line discussed by the help of the Track Quality Indices (TQI), Overall Quality Indices (OQI) and Tamping Indices (TI) concepts. In light of the case study conducted at this paper, the quality of the track renewal and maintenance works performed by Turkish State Railways (TCDD) was examined.}, number={6}, publisher={Afyon Kocatepe University}