Noise and vibration research

Noise and vibration research reports

• NZTA research reports

  Research on noise or vibration produced under the NZTA research programme.

  Research programme 

  Research report number	Title	Date	Author	Topic area
  703	Investigation of the external noise emitted from electric buses in New Zealand and the need for acoustic vehicle alerting systems to improve road user safety	2022	MRCagney	Safety
  656	Evidential basis for community response to land transport noise	2019	AECOM	Effects
  626	The long-term acoustic performance of New Zealand standard porous asphalt	2017	Opus	Road surface
  485	Ground vibration from road construction	2012	Opus	Construction, Vibration
  478	Improved effectiveness and innovation for audio tactile profiled roadmarkings	2012	Opus	Safety
  446	The variability of road traffic noise and implications for compliance with the noise conditions of roading designations	2011	Opus	Assessment
  326	Road surface effects on traffic noise – stage 3: selected bituminous mixes	2007	Opus	Road surface
  307	Fatigue design criteria for low noise surfaces on New Zealand roads	2006	Transit NZ	Road surface
  299	Land transportation and noise: land use planning for a quieter New Zealand	2006	Incite	Effects
  292	Road traffic noise: determining the influence of New Zealand road surfaces on noise levels and community annoyance	2006	Opus	Effects, road surface
  190	Traffic noise guidelines for low noise areas in New Zealand	2001	Opus	Assessment
  121	Validation of LEQ model for road noise assessment in New Zealand	1999	Opus	Assessment
  120	Friction course comparisons of 20 & 14 mm mixes	1999	Opus	Road surface
  83	Road noise generated by concrete block pavements	1997	Opus	Road surface
  28	Traffic noise from uninterrupted traffic flows	1994	Beca Carter Hollings & Ferner	Assessment
  3	Traffic noise: prediction of interrupted flow noise	1991	ARRB	Assessment

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• NZTA commissioned reports

  Research reports, data and papers/presentations from other studies commissioned by NZTA (excluding road surface noise research listed separately below).

  Title	Date	Author	Topic area	Type of document
  Cost of traffic noise mitigation measures – Existing dwelling extensions and alterations [PDF, 203 KB]	2024	AES	Building modification	Case study
  Uncertainty of road-traffic noise prediction in New Zealand [PDF, 576 KB] Reproduced from New Zealand Acoustics 37(2) p.40-47 with permission.	2023	Waka Kotahi	Modelling	Peer-reviewed journal paper
  GIS advice on smoothing of noise contours [PDF, 1.2 MB]	2021	T+T	Mapping	Advice memo
  Cost of traffic noise mitigation measures [PDF, 222 KB]	2020	AES	Building modification	Case study
  Road-traffic noise calculation methods [PDF, 298 KB]	2020	WSP	Modelling	Literature review
  Ventilation specifications for acoustic treatment [PDF, 1.3 MB]	2020	AES	Building modification	Literature review
  Noise barrier test rig – field measurements [PDF, 4.9 MB]	2019	Altissimo	Barriers	Measurement summary
  Noise barrier test rig – capability report [PDF, 1.7 MB]	2019	Altissimo	Barriers	Instrumentation summary
  National land transport (road) noise map [PDF, 2.6 MB]	2019	AECOM	Mapping	Project report
  Selection of state highway bridge expansion joints in noise sensitive areas [PDF, 544 KB]	2014	NZTA	Bridge joints	Conference paper
  State highway bridge expansion joint noise [PDF, 3.8 MB] Appendices [ZIP, 44 MB]	2014	URS & Opus	Bridge joints	Research report
  Ventilation systems installed for road-traffic noise mitigation [PDF, 1.6 MB]	2014	Beca	Building modification	Case study
  Intersection noise measurements [PDF, 10 MB] Noise measurement data: Zip folder 1 [ZIP, 43 MB] Zip folder 2 [ZIP, 31 MB]	2014	AECOM	Road-traffic noise	Measurement summary and data
  Building acoustic mitigation case study [PDF, 4.2 MB]	2013	Beca	Building modification	Case study
  Measurement of the acoustic performance of traffic noise barriers on Auckland motorways using prEN1793-6 [PDF, 4.5 MB]	2012	University of Canterbury	Barriers	Project report
  Quantification of noise and vibration effects arising from higher mass limits for heavy vehicles [PDF, 3.4 MB]	2008	Opus	Heavy vehicles	Research report

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• Road surface noise research

  Outputs of the NZTA Road Surface Noise Research Programme.

  Title	Date	Author	Topic sub-area	Type of document
  Improved CPX enclosure correction measurements using a maximum length sequence impulse response [PDF, 681 KB]	2024	Waka Kotahi	CPX trailer	Conference paper
  Improving surfaces for quieter roads [PDF, 433 KB]	2024	Waka Kotahi	Asphalt	Conference paper
  Specification and deployment of quieter road surfaces [PDF, 262 KB]	2024	Waka Kotahi	Asphalt	Conference paper
  Comparison of microphone positions for CPX measurements [PDF, 846 KB]	2024	Altissimo	CPX trailer	Research report
  Void shape characterisation methods - scoping study [PDF, 736 KB]	2024	WSP	Asphalt	Literature review
  2023/24 CPX survey summary [PDF, 521 KB]	2024	Altissimo	CPX survey	Measurement report
  Analysis of porous asphalt surface properties [PDF, 2.7 MB]	2024	Altissimo	Asphalt	Research report
  Analysis of porous asphalt acoustic absorption [PDF, 2.3 MB]	2024	Altissimo	Asphalt	Research report
  Analysis of porous asphalt void fraction [PDF, 1.8 MB]	2024	Altissimo	Asphalt	Research report
  Texture measurement and analysis of effects [PDF, 2.8 MB]	2024	Altissimo	Macrotexture	Research report
  Analysis of porous asphalt thickness, ageing, epoxy and CPX speed, tyres [PDF, 9.5 MB]	2024	Altissimo	Asphalt, CPX trailer	Research report
  Road surface noise corrections 2023 [PDF, 610 KB]	2023	Waka Kotahi	Surface corrections	Research report
  Road surface noise corrections validation measurements report [PDF, 5.8 MB] Noise and traffic monitoring data [ZIP, 78 MB]	2023	AES	Leq survey	Measurement report
  2022/23 CPX survey summary [PDF, 5.7 MB]	2023	Altissimo	CPX survey	Measurement report
  Analysis of low-noise asphaltic mix surfaces: texture, construction, and porosity effects [PDF, 3.3 MB]	2023	Altissimo	Asphalt	Research report
  Analysis of chipseal surfaces [PDF, 3.8 MB]	2023	Altissimo	Chipseal	Research report
  Analysis of low-noise asphaltic mix surfaces – part 1 [PDF, 11 MB]	2023	Altissimo	Asphalt	Research report
  A new methodology for deriving road surface noise corrections for light vehicles in New Zealand [PDF, 316 KB]	2022	Waka Kotahi	Surface corrections	Conference Paper
  Road surface noise corrections part 3: heavy vehicles [PDF, 690 KB]	2022	WSP	Surface corrections	Research report
  Road surface noise corrections part 2: light vehicles [PDF, 1.3 MB]	2022	WSP	Surface corrections	Research report
  Christchurch Northern Corridor – 2022 trial site preliminary investigations [PDF, 3 MB]	2022	Altissimo	Asphalt	Measurement report
  Canterbury road surface noise – 2022 measurement summary [PDF, 2 MB]	2022	Altissimo	CPX survey	Measurement report
  SH73 chipseal noise trial – construction monitoring [PDF, 5.5 MB]	2022	Waka Kotahi	Chipseal	Measurement report
  SH73 chipseal noise trial – planning [PDF, 1.2 MB]	2022	Waka Kotahi	Chipseal	Project plan
  Road surface noise corrections part 1: large CPX survey [PDF, 3.4 MB]	2021	WSP	Surface corrections, CPX Survey	Research report
  Investigating the effect of layer thickness on the variability of porous asphalt tyre/road noise [PDF, 412 KB] Video(external link)	2021	Waka Kotahi	Asphalt	Conference paper
  Optimising New Zealand's state highway low-noise road surface [PDF, 305 KB] Video(external link)	2021	Waka Kotahi	Asphalt	Conference paper
  Summary of CPX measurement [PDF, 23 MB]	2021	Altissimo	CPX survey	Measurement report
  Porous asphalt surface noise trials – summary of close proximity (CPX) testing results [PDF, 621 KB]	2021	Waka Kotahi	Asphalt	Measurement report
  Road surface noise – texture relationships interim progress report [PDF, 1.8 MB]	2020	Altissimo	Macrotexture	Research report
  Measurement of asphalt thickness [PDF, 461 KB]	2020	WSP	Asphalt	Literature review
  Chipseal trial strategy [PDF, 765 KB]	2020	WSP	Chipseal	Research report
  Tyre/road noise contribution from heavy vehicles [PDF, 1.3 MB]	2020	WSP	Heavy vehicles	Research report
  Road surface noise – influence of axle motion on CPX level [PDF, 5.2 MB]	2020	Altissimo	CPX trailer	Research report
  Initial review of aggregates with respect to road traffic noise [PDF, 823 KB]	2020	WSP	Macrotexture	Research report
  Road surface noise research porous asphalt variability study [PDF, 11 MB]	2020	Altissimo	Asphalt	Research report
  Masterton chipseal trial tyre/road noise measurements [PDF, 6.4 MB]	2019	Altissimo	Chipseal	Measurement report
  Road surface noise – measurements of porous asphalt on the Auckland motorways [PDF, 12 MB]	2019	Altissimo	CPX survey	Measurement report
  NZTA road surface noise research programme 2018/2019 – preliminary chipseal study [PDF, 625 KB]	2019	WSP	Chipseal	Research report
  NZTA road surface noise research programme 2018 – CPX versus wayside measurements [PDF, 901 KB]	2019	WSP	Pass-by survey	Research report
  Road surface noise measurements of porous asphalt on the Waikato Expressway and Tauranga Eastern Link [PDF, 6.5 MB]	2019	Altissimo	CPX survey	Measurement report
  Road surface noise research 2016–2018 (CPX trailer development and initial measurement results) [PDF, 4.3 MB]	2018	Waka Kotahi	CPX trailer	Project report
  Low-noise road surfaces performance monitoring [PDF, 1.6 MB]	2014	Opus	Asphalt	Research report
  Road/surface noise data for a two-coat and a racked-in chipseal [PDF, 660 KB]	2014	NZ Transport Agency	Pass-by survey	Measurement report
  Drive-by vehicle noise (2000) [PDF, 1 MB]	2000	Opus	Pass-by survey	Research report

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