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The Swedish Government decided in 2017 to investigate different possibilities and challenges with implementing electrified roads in Sweden and since then, the Swedish Transport Administration has a program for investigations and research regarding electric road systems (ERS). The Research and Innovation Platform for Electrified Roads is part of this program and the present report is a compilation of the results derived regarding environmental impact of ERS from the work in work package two of this platform. The general concept of ERS is to deliver energy for charging and propulsion of vehicles while driving.The environmental aspects that are covered in this report are mainly focusing on particles, noise and electromagnetic field emissions. The information is attained from literature reviews and discussions with project leaders of demonstration projects for electrified roads in Sweden. Comparisons were made with similar existing techniques or concepts. The overall results indicate that more research is needed on environmental impact of ERS, mainly regarding particles from the wear of conductive ERSas well as on emissions of electromagnetic fields. It is for instance important to consider emissions from electromagnetic fields as early on in the development phase as possible as well as looking intothe standards that regulates or need to regulate these technologies in order for them to work properly together with other electrical devices on or close to the roads. Screening of electromagnetic fields is an alternative, which could become a costly solution if considered later on in the process. ; Sedan den svenska regeringen år 2017 beslutade att undersöka möjligheter och utmaningar med attinföra elvägar i Sverige, har Trafikverket startat ett program för utredning och forskning kring elvägar. Resultaten som diskuteras i denna rapport kommer från det arbete som gjorts i arbetspaketet för miljöeffekter av elvägar som bedrivits inom Forsknings- och innovationsplattformen för elvägar somär en del av Trafikverkets elvägsprogram. Det grundläggande konceptet med elväg är att leverera el för framdrift och laddning av fordon medan de är i rörelse längs med vägen. De miljöeffekter som studerats via litteraturstudier har främst handlat om partiklar, buller och elektromagnetiska fält. Jämförelser har gjorts med befintliga tekniker och koncept som kan liknas med olika varianter av elvägar. Det sammantagna resultatet är att det behövs mer forskning kring de miljöeffekter som elvägar kan föra med sig, främst gällande partiklar från slitage hos de konduktiva elvägsteknikerna och elektromagnetiska fält för olika delar och komponenterav elvägen. Det är exempelvis viktigt att tidigt se över emissioner av elektromagnetiska fält och de standarder som antingen finns eller behövs för att kunna reglera hur dessa tekniker ska kunna fungera i miljöer tillsammans med andra elektriska apparater. Skärmning av elektromagnetiska fält är alternativför att begränsa sådana emissioner men skärmning brukar bli en kostsam lösning.

The Swedish government has prioritized achieving a fossil fuel-independent vehicle fleet by 2030 which will require radical transformation of the transport industry. Electrifying the vehicle fleet forms an important part of this transformation. For light vehicles, electrification using batteries and charging during parking is already well advanced. For city buses, charging at bus stops and bus depots is being developed, but for heavy, long-distance road transport, batteries with enough capacity to provide sufficient range would be too cumbersome and too much time would have to be spent stationary for charging. One solution might be the introduction of electric roads, supplying the moving vehicle with electricity both to power running and for charging. In the longer term, this approach could also be used for light vehicles and buses. The objective of the Research and Innovation Platform for Electric Roads was to enhance Swedish and Nordic research and innovation in this field, this has been done by developing a joint knowledge base through collaboration with research institutions, universities, public authorities, regions, and industries. The work of the Research and Innovation Platform was intended to create clarity concerning the socioeconomic conditions, benefits, and other effects associated with electric roads. We have investigated the benefits from the perspectives of various actors, implementation strategies, operation and maintenance standards, proposed regulatory systems, and factors conducive of the acceptance and development of international collaborative activities. The project commenced in the autumn of 2016 and the main research continued until December 2019, the work during year 2020 has been focused on knowledge spread and coordination with the Swedish-Germany research collaboration on ERS (CollERS). The results of the Research and Innovation Platform have been disseminated through information meetings, seminars, and four annual international conferences. Reports have been published in the participating partners' ordinary publication series and on www.electricroads.org. The project was funded by Strategic Vehicle Research and Innovation (FFI) and the Swedish Transport Administration.

The present study aims at discussing relevant aspects for a potential roll-out of Electric Road Systems (ERS) on transnational corridors, as well as generally for ERS introduction in Europe. Feasibility criteria have thus been developed in order to assess the following topics for specific potential ERS corridor projects: Technical aspects: Which technical prerequisites exist for ERS corridors and to which extent can they expected to be met? Environmental aspects: Which effects can be expected on key environmental indicators? Economic aspects: Can an ERS corridor pose a business case? Could it contribute to the improvement of ERS economy in general? Political aspects: Would an ERS corridor implementation make sense from a political point of view? The developed criteria may serve as a toolbox for scrutinizing future transnational ERS corridor projects. In order to illustrate their application, we used them to analyse a potential roll-out of an Electric Road System on a selected highway corridor (424 km) connecting Sweden and Germany, but mainly located on Danish territory. Based on traffic flows and patterns along the corridor route, it was found: A considerable part of the total truck mileage on the corridor is done by vehicles with a rather limited driving distance for pre- and post-haul, assuming the corridor is realized as a stand-alone project, and the CO2 emissions (well-to-wheel) of truck traffic along the corridor route can be significantly reduced if electric trucks are powered by the national electricity mixes expected for the year 2030, and even more if it would be powered purely renewable. Although a continuous ERS on the complete corridor route would not be economically feasible under current conditions, the analysis pinpoints sections along the route where the traffic volumes with a sufficient share of operation on a potential ERS are significantly higher. These sections are located in the metropolitan areas of Malmö, Copenhagen and Hamburg. For implementation, peculiarities of the local markets and regulation should be considered, as well as country-specific priorities on decarbonizing road freight transport. Additionally, the identified ERS potential for medium distances will depend on the technical and cost development of battery trucks. Our analysis also sheds some light on the role of first transnational corridors within a European roll-out strategy for ERS. Such corridor projects could help to proof the principal strengths of ERS, trigger strategic coordination between the participating countries, foster national ERS roll-out due to synergy effects with the corridor and pave the way for integration of ERS into EU legislation (e.g. AFID, TEN-T planning) ; Swedish-German Research Collaboration on Electric Road Systems (CollERS)