Determination of Length Correction from the Projection and Deformation of Geodetic Controls in the Realization of Precision Linear Structures—A Case Study of the Coordinate System S-JTSK, Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F25%3A10258679" target="_blank" >RIV/61989100:27350/25:10258679 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2076-3417/15/6/3369" target="_blank" >https://www.mdpi.com/2076-3417/15/6/3369</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app15063369" target="_blank" >10.3390/app15063369</a>

Result language

angličtina

Original language name

Determination of Length Correction from the Projection and Deformation of Geodetic Controls in the Realization of Precision Linear Structures—A Case Study of the Coordinate System S-JTSK, Czech Republic

Original language description

Long linear constructions, particularly high-speed railway lines, place very high demands on the accuracy of the fundamental geodetic controls on which they are based. In general, national reference coordinate systems possess deformations (relative inconsistencies) due to historical factors—primarily the low accuracy of the measurement methods that were used at the time of their development. The reference coordinate system S-JTSK used in the Czech Republic comprises local deformations that are determined using a modern space geodesy method—the Global Navigation Satellite Systems (GNSS). An analysis of the local deformations revealed that, in the Czech Republic, 99% of the length corrections from the coordinate system deformations are in the interval of −1.4 to +1.4 cm/km with a standard deviation of up to 1.4 cm/km. The extreme value in this regard is the length correction from the deformation of +2.5 cm/km and the standard deviation of 3.6 cm/km. These values exceed the required accuracy of 1 cm/km, and the length corrections from the deformations, together with the length corrections from the used projection, must be taken into account when undertaking surveying work on high-speed railway lines in the Czech Republic (also with the height correction for lengths). The magnitude of the scatter also indicates the distortion of the S-JTSK projection conformality due to the deformations. © 2025 by the authors.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Sciences

ISSN

2076-3417

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

nestránkováno

UT code for WoS article

001453611200001

EID of the result in the Scopus database

2-s2.0-105001056540