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Non-Exhaust PM10 and Road Dust
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials. VTI - Statens Väg- och Transportforskningsinstitut.ORCID iD: 0000-0002-0138-0768
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Non-exhaust PM10 is an issue in the urban environment linked to health issues. Emissions of non-exhaust PM10 is relatable to pavement properties. Also of importance is resuspension of road dust stored from surfaces. This depends on the traffic and metrological conditions. Given this, the purpose of the thesis was to give an overview limited to Sweden and the Nordic countries regarding non-exhaust PM10 emissions and road dust.

The overview includes how particles are related to human health. Also included is the principle of how particles are emitted from road surface and tyre interaction, both directly and through resuspension of road dust. This thesis also includes an overview of how the use of studded tyres impact on asphalt surfacings and how the properties of the materials used impact on the abrasion wear. This is then linked to the emissions of non-exhaust particles. Further described is how measurements can be done of ambient particles and road dust, followed on two major models for road abrasion wear and non-exhaust PM prediction. Also included is how road operation, e.g. traction sanding and dust binding, influence the particle emissions together with other options to reduce the emissions through, e.g. limiting the use of studded tyres.

One special issue discussed in this thesis is the lack of holistic view regarding the environmental problems in the urban environment with focus on particle emissions and road noise emissions, both from the road surface and tyre interaction. Currently the most problematic issue is prioritized and the resulting solution to that specific problem might increase other problems.

This thesis shows that much knowledge is available regarding non-exhaust PM10 emissions and road dust, but also that several knowledge gaps exists. Several suggestions on further studies is given together with a brief overview on the continued work forward from this thesis.

Abstract [sv]

Icke-avgasemissioner av PM10 är ett problem i urbana miljöer länkat till flera hälsoaspekter. Dessa emissioner kan relateras till beläggningars egenskaper. Även resuspension av vägdamm från ytor är av betydelse och beror på både trafiken och meterologin. Baserat på detta är syftet med denna avhandling att ge en översikt kring icke-avgas PM10 emissioner och vägdamm, begränsat till Sverige och de övriga nordiska länderna.

Denna översikt inkluderar hur partiklar relaterar till människans hälsa. Annat som inkluderas är hur partiklarna emitteras från vägyta-däckinteraktionen, både direkt och genom resuspension av vägdamm. Avhandlingen inkluderar även en översikt kring hur användandet av dubbdäck inverkar på vägbeläggningar och hur dess egenskaper inverkar på nötningsslitage. Detta länkas därefter till partikelemissioner. Vidare beskrivs även hur mätningar kan genomföras av partiklar samt vägdamm vilket följs upp av beskrivningar kring två större modeller kring prediktion av nötningsslitage och prediktion av icke-avgasemissioner. Även hur driftåtgärder inverkar på emissionerna tillsammans med alternativ för att minska emissionerna tas upp.

Ett särskilt problem som tas upp i avhandlingen är bristen på helhetssyn beträffande miljöproblem i den urbana miljön med fokus på partikel- och bulleremissioner från vägyta-däckinteraktionen. För närvarande brukar det värsta problemet prioriteras och lösningen till det detta problem kan i sin tur medföra att andra miljöproblem istället förvärras.

Denna avhandling visar på att mycket kunskap existerar kring icke-avgasemissioner av PM10 och kring vägdamm, men även att flertalet kunskapsluckor existerar. Flertalet förslag på vidare studier ges tillsammans med en överblick kring det fortsatta arbetet.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2018. , p. 129
Series
TRITA-ABE-DLT ; 1802003
Keywords [en]
Road Dust, Abrasion Wear, Road Surface Macro Texture, Mean Profile Depth, Mean Texture Depth, Emissions, Abrasion Wear Model, NORTRIP, PM10, Air Quality, Particles
Keywords [sv]
Vägdamm, Vägslitage, Dubbslitage, Textur, Emissioner, Slitagemodell, NORTRIP, PM10, Partiklar, Luftkvalitet
National Category
Civil Engineering
Research subject
Civil and Architectural Engineering
Identifiers
URN: urn:nbn:se:kth:diva-222155ISBN: 978-91-7729-689-8 (print)OAI: oai:DiVA.org:kth-222155DiVA, id: diva2:1179589
Presentation
2018-03-01, F3, Lindstedtsvägen 26, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20180202

Available from: 2018-02-02 Created: 2018-02-01 Last updated: 2018-02-06Bibliographically approved
List of papers
1. Calibration of the Swedish Studded Tyre Abrasion Wear Prediction Model and the Implication for the NORTRIP Road Dust Emission Model
Open this publication in new window or tab >>Calibration of the Swedish Studded Tyre Abrasion Wear Prediction Model and the Implication for the NORTRIP Road Dust Emission Model
2018 (English)In: Transportation Research Board 97th annual meeting, Washington, D.C., 2018Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

An experimentally based prediction model of rut development due to studded tyres is available in 3 Sweden and which had been found to work well. However, since it has not been validated since 4 2007, during which traffic as well as road and tyre design have developed, the question has 5 arisen regarding the model’s current validity. Also, since the prediction model is used in the 6 NORTRIP (NOn-exhaust Road Traffic Induced Particle emission) emission model, a natural 7 question is how a change in the wear model will affect the emission model. In this paper, two 8 versions of the abrasion model are compared to measurements at several recently constructed 9 roads in Sweden to investigate the validity, while also proposing changes to allow for continued 10 use. In addition, the impact on NORTRIP is briefly investigated. The paper first describes the 11 abrasion models and their calibration, as well as the test sections for calibration. Both versions of 12 the model, as expected, overestimated the wear and an update was suggested. It was also found 13 that NORTRIP is indicatively affected by overestimating the contribution of pavement wear to 14 the emissions.

Place, publisher, year, edition, pages
Washington, D.C.: , 2018
Keywords
PM10, Studded tyre, Abrasion, Rut, Wear, Modeling, NORTRIP, PM10, Dubbdäck, Nötning, Spårdjup, Slitage, Modellering, NORTRIP
National Category
Civil Engineering
Research subject
Civil and Architectural Engineering
Identifiers
urn:nbn:se:kth:diva-222127 (URN)
Conference
Transportation Research Board annual meeting
Note

QC 20180219

Available from: 2018-02-01 Created: 2018-02-01 Last updated: 2018-02-28Bibliographically approved
2. Texture influence on road dust load
Open this publication in new window or tab >>Texture influence on road dust load
2017 (English)In: Proceedings of the 22nd International Transportation and Air Pollution Conferens, 2017Conference paper, Oral presentation with published abstract (Refereed)
Keywords
Road Dust, Dust load, WDS, Road Simulator, Road Surface Macro Texture, MPD, MPDn, Vägdamm, vägdammsförråd, Provvägsmaskin, Vägyta, Makrotextur, MPD, MPDn
National Category
Civil Engineering
Research subject
Civil and Architectural Engineering
Identifiers
urn:nbn:se:kth:diva-222116 (URN)
Conference
TAP - Transportation and Air Pollution
Note

QC 20180219

Available from: 2018-01-31 Created: 2018-01-31 Last updated: 2018-02-19Bibliographically approved

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