The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis
This paper presents a detailed algorithm for determining the curvature of a track axis with the use of a moving chord method, and then discusses the procedure for identifying the geometric layout of an exploited railway route on the basis of the determined curvature. In the moving chord method, the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/1/274 |
| _version_ | 1827617195923865600 |
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| author | Wladyslaw Koc |
| author_facet | Wladyslaw Koc |
| author_sort | Wladyslaw Koc |
| collection | DOAJ |
| description | This paper presents a detailed algorithm for determining the curvature of a track axis with the use of a moving chord method, and then discusses the procedure for identifying the geometric layout of an exploited railway route on the basis of the determined curvature. In the moving chord method, the measured coordinates of the track axis allow one to directly determine the existence of the horizontal curvature without the need for additional measurements. This enables comprehensively identifying the existing geometric elements—straight lines, circular arcs, and transition curves. The conducted activities were illustrated with a calculation example, including a 5.5 km long test section with five areas of directional change. This showed a sequential procedure that led to the solution of the given problem. Based on the curvature diagram, the coordinates of the segmentation points, which define the connections of the existing geometric elements with each other, were determined. |
| first_indexed | 2024-03-09T09:40:30Z |
| format | Article |
| id | doaj.art-290a290a332a41e6b0f72235328b01ba |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T09:40:30Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-290a290a332a41e6b0f72235328b01ba2023-12-02T00:55:00ZengMDPI AGSensors1424-82202022-12-0123127410.3390/s23010274The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track AxisWladyslaw Koc0Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, PolandThis paper presents a detailed algorithm for determining the curvature of a track axis with the use of a moving chord method, and then discusses the procedure for identifying the geometric layout of an exploited railway route on the basis of the determined curvature. In the moving chord method, the measured coordinates of the track axis allow one to directly determine the existence of the horizontal curvature without the need for additional measurements. This enables comprehensively identifying the existing geometric elements—straight lines, circular arcs, and transition curves. The conducted activities were illustrated with a calculation example, including a 5.5 km long test section with five areas of directional change. This showed a sequential procedure that led to the solution of the given problem. Based on the curvature diagram, the coordinates of the segmentation points, which define the connections of the existing geometric elements with each other, were determined.https://www.mdpi.com/1424-8220/23/1/274railway trackcurvature of the track axismoving chord methodidentification of geometric layout |
| spellingShingle | Wladyslaw Koc The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis Sensors railway track curvature of the track axis moving chord method identification of geometric layout |
| title | The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis |
| title_full | The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis |
| title_fullStr | The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis |
| title_full_unstemmed | The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis |
| title_short | The Procedure of Identifying the Geometrical Layout of an Exploited Railway Route Based on the Determined Curvature of the Track Axis |
| title_sort | procedure of identifying the geometrical layout of an exploited railway route based on the determined curvature of the track axis |
| topic | railway track curvature of the track axis moving chord method identification of geometric layout |
| url | https://www.mdpi.com/1424-8220/23/1/274 |
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