A Study on Parameters Affecting the Track Quality of High Speed Rail Tracks

Year 2016, Volume: 31 Issue: 2, 279 - 292, 15.12.2016

Murat Vergi Taciroğlu , Mustafa Karaşahin Mesut Tığdemir

https://doi.org/10.21605/cukurovaummfd.310299

Cited By: 1

Abstract

Railway track maintenance and renewal activities are performed depending on the changes in track quality. Track quality indicates the operating condition of the track and the quality is usually expressed with a numerical index. Known as track geometry indexes, these indicator values are calculated based on data obtained from the track geometry control measurements. In this study, using the data obtained from the Ankara-Eskisehir High-Speed Rail (HSR) track, the factors affecting the track quality of HSR track were determined. For this purpose, firstly the track under investigation was divided into analysis segments considering the rail alignment geometry. Then, by analyzing the data of the track record car measurements, the degree of deterioration occured in the analysis segments and the change of track quality were examined in the segments where deteriorations occured. At the end of the study, multivariate regression models were constructed in order to determine the factors affecting the track quality. According to these models, it was determined that the factors affecting the track quality are traffic-related parameters, type of analysis segment and previous value of track quality.

Keywords

High speed rail, Track quality, Multivariate regression analysis, Track geometry

Yüksek Hızlı Tren Hatlarında Hat Kalitesine Etki Eden Parametreler Üzerine Bir ÇalıĢma

Abstract

Demiryolu hat bakım ve yenileme çalıĢmaları hat kalitesinde görülen değiĢimlere bağlı olarak yapılmaktadır. Hat kalitesi, hattın içinde bulunduğu iĢletme durumunu belirtir ve genellikle bir indeks yardımıyla sayısal olarak ifade edilir. Hat geometrisi indeksi olarak bilinen bu gösterge değerler, hat geometrisi kontrol ölçümlerinden elde edilen veriler temel alınarak hesaplanır. Bu çalıĢmada Ankara-EskiĢehir Yüksek Hızlı Tren (YHT) hattından elde edilen verilerden yararlanılarak YHT hattında hat kalitesine etki eden etkenler belirlenmeye çalıĢılmıĢtır. Bunun için ilk olarak incelenen hat güzergâh geometrisi dikkate alınarak inceleme kesimlerine ayrılmıĢtır. Daha sonra hat kontrol trenleri ile yapılan ölçümlerin verileri analiz edilerek hangi kesimde ne kadar bozulma oluĢtuğu belirlenmiĢ ve bozulma oluĢan kesimlerde hat kalitesinin değiĢimi incelenmiĢtir. ÇalıĢmanın sonunda ise hat kalitesine etki eden parametreleri belirlemek için çok değiĢkenli regresyon modelleri oluĢturulmuĢtur. Bu modellere göre, hat kalitesine etki eden faktörler trafiğe bağlı parametreler, hat kesimi tipi ve hat kalitesinin bir önceki ölçümdeki değeri olarak belirlenmiĢtir.

Keywords

Yüksek hızlı tren hattı, Hat kalitesi, Çok değiĢkenli regresyon analizi, Hat geometrisi

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