Traffic speed deflectometer measurements at the Aurora instrumented road test site

Christoffer Peder  Nielsen; Petri Varin; Timo Saarenketo; Pauli Kolisoja

doi:10.1201/9781003222880-36

Traffic speed deflectometer measurements at the Aurora instrumented road test site

Christoffer Peder Nielsen, Petri Varin, Timo Saarenketo, Pauli Kolisoja

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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Abstract

The results from a comprehensive set of validation measurements of the Traffic
Speed Deflectometer (TSD) are presented. The measurements took place at the Aurora instrumented road test site in Muonio, Finnish Lapland, at a range of different driving speeds and road temperatures. The ability of the TSD to accurately measure pavement surface response, was validated by comparing the TSD measurements to measurements by in-situ displacement transducers. In addition, a linear viscoelastic back-calculation algorithm was applied to the
TSD measurements to produce estimates of stresses and strains inside the pavement structure. These estimates were compared to measurements by in-situ transducers at the Aurora test site. The tests revealed an excellent agreement between the surface responses measured by the two
systems, and a good agreement between the strains predicted from TSD measurements and the strains measured by in-situ transducers. As expected, the back-calculated moduli of the asphalt were found to increase with driving speed and decrease with temperature.

Original language	English
Title of host publication	Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields
Editors	Inge Hoff, Helge Mork, Rabbira Saba
Place of Publication	London
Publisher	Taylor & Francis
Pages	399-408
Number of pages	10
Volume	1
Edition	1
ISBN (Electronic)	9781003222880
ISBN (Print)	9781032120447, 9781032120683
DOIs	https://doi.org/10.1201/9781003222880-36
Publication status	Published - 2021
Publication type	A4 Article in conference proceedings
Event	International Conference on the Bearing Capacity of Roads, Railways and Airfields - Trondheim, Norway Duration: 28 Jun 2022 → 30 Jun 2022 Conference number: 11 https://www.ntnu.no/bcrra/

Conference

Conference	International Conference on the Bearing Capacity of Roads, Railways and Airfields
Abbreviated title	BCRRA
Country/Territory	Norway
City	Trondheim
Period	28/06/22 → 30/06/22
Internet address	https://www.ntnu.no/bcrra/

Keywords

Trafﬁc Speed Deﬂectometer, TSD, Aurora, Structural condition, Instrumented pavement

Publication forum classification

Publication forum level 2

Access to Document

10.1201/9781003222880-36Licence: CC BY-NC-ND

10.1201_9781003222880-36_chapterpdfFinal published version, 902 KBLicence: CC BY-NC-ND

https://urn.fi/URN:NBN:fi:tuni-202202071869Licence: CC BY-NC-ND

Cite this

Nielsen, C. P., Varin, P., Saarenketo, T., & Kolisoja, P. (2021). Traffic speed deflectometer measurements at the Aurora instrumented road test site. In I. Hoff, H. Mork, & R. Saba (Eds.), Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields (1 ed., Vol. 1, pp. 399-408). Taylor & Francis. https://doi.org/10.1201/9781003222880-36

Nielsen, Christoffer Peder ; Varin, Petri ; Saarenketo, Timo et al. / Traffic speed deflectometer measurements at the Aurora instrumented road test site. Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields. editor / Inge Hoff ; Helge Mork ; Rabbira Saba. Vol. 1 1. ed. London : Taylor & Francis, 2021. pp. 399-408

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abstract = "The results from a comprehensive set of validation measurements of the Traffic Speed Deflectometer (TSD) are presented. The measurements took place at the Aurora instrumented road test site in Muonio, Finnish Lapland, at a range of different driving speeds and road temperatures. The ability of the TSD to accurately measure pavement surface response, was validated by comparing the TSD measurements to measurements by in-situ displacement transducers. In addition, a linear viscoelastic back-calculation algorithm was applied to the TSD measurements to produce estimates of stresses and strains inside the pavement structure. These estimates were compared to measurements by in-situ transducers at the Aurora test site. The tests revealed an excellent agreement between the surface responses measured by the two systems, and a good agreement between the strains predicted from TSD measurements and the strains measured by in-situ transducers. As expected, the back-calculated moduli of the asphalt were found to increase with driving speed and decrease with temperature.",

keywords = "Trafﬁc Speed Deﬂectometer, TSD, Aurora, Structural condition, Instrumented pavement",

author = "Nielsen, {Christoffer Peder} and Petri Varin and Timo Saarenketo and Pauli Kolisoja",

year = "2021",

doi = "10.1201/9781003222880-36",

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editor = "Inge Hoff and Helge Mork and Rabbira Saba",

booktitle = "Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields",

publisher = "Taylor & Francis",

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Nielsen, CP, Varin, P, Saarenketo, T & Kolisoja, P 2021, Traffic speed deflectometer measurements at the Aurora instrumented road test site. in I Hoff, H Mork & R Saba (eds), Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields. 1 edn, vol. 1, Taylor & Francis, London, pp. 399-408, International Conference on the Bearing Capacity of Roads, Railways and Airfields, Trondheim, Norway, 28/06/22. https://doi.org/10.1201/9781003222880-36

Traffic speed deflectometer measurements at the Aurora instrumented road test site. / Nielsen, Christoffer Peder ; Varin, Petri; Saarenketo, Timo et al.
Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields. ed. / Inge Hoff; Helge Mork; Rabbira Saba. Vol. 1 1. ed. London: Taylor & Francis, 2021. p. 399-408.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Traffic speed deflectometer measurements at the Aurora instrumented road test site

AU - Nielsen, Christoffer Peder

AU - Varin, Petri

AU - Saarenketo, Timo

AU - Kolisoja, Pauli

N1 - Conference code: 11

PY - 2021

Y1 - 2021

N2 - The results from a comprehensive set of validation measurements of the Traffic Speed Deflectometer (TSD) are presented. The measurements took place at the Aurora instrumented road test site in Muonio, Finnish Lapland, at a range of different driving speeds and road temperatures. The ability of the TSD to accurately measure pavement surface response, was validated by comparing the TSD measurements to measurements by in-situ displacement transducers. In addition, a linear viscoelastic back-calculation algorithm was applied to the TSD measurements to produce estimates of stresses and strains inside the pavement structure. These estimates were compared to measurements by in-situ transducers at the Aurora test site. The tests revealed an excellent agreement between the surface responses measured by the two systems, and a good agreement between the strains predicted from TSD measurements and the strains measured by in-situ transducers. As expected, the back-calculated moduli of the asphalt were found to increase with driving speed and decrease with temperature.

AB - The results from a comprehensive set of validation measurements of the Traffic Speed Deflectometer (TSD) are presented. The measurements took place at the Aurora instrumented road test site in Muonio, Finnish Lapland, at a range of different driving speeds and road temperatures. The ability of the TSD to accurately measure pavement surface response, was validated by comparing the TSD measurements to measurements by in-situ displacement transducers. In addition, a linear viscoelastic back-calculation algorithm was applied to the TSD measurements to produce estimates of stresses and strains inside the pavement structure. These estimates were compared to measurements by in-situ transducers at the Aurora test site. The tests revealed an excellent agreement between the surface responses measured by the two systems, and a good agreement between the strains predicted from TSD measurements and the strains measured by in-situ transducers. As expected, the back-calculated moduli of the asphalt were found to increase with driving speed and decrease with temperature.

KW - Trafﬁc Speed Deﬂectometer, TSD, Aurora, Structural condition, Instrumented pavement

U2 - 10.1201/9781003222880-36

DO - 10.1201/9781003222880-36

M3 - Conference contribution

SN - 9781032120447

SN - 9781032120683

VL - 1

SP - 399

EP - 408

BT - Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields

A2 - Hoff, Inge

A2 - Mork, Helge

A2 - Saba, Rabbira

PB - Taylor & Francis

CY - London

T2 - International Conference on the Bearing Capacity of Roads, Railways and Airfields

Y2 - 28 June 2022 through 30 June 2022

ER -

Traffic speed deflectometer measurements at the Aurora instrumented road test site

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