The current deliverable is an outcome of the EU-project titled DACcelerate part of WP4 (Infrastructure, capacity and modal shift/Green deal) in the European DAC Delivery Programme (EDDP, under the WP structure valid until end-2022). EDDP WP4 has been led by Trafikverket who is also in various leading positions/WPs in TRANS4M-R and EDDP neo. The overall objective DACcelerate WP5 is to investigate the changes in work environment at marshalling yards that a transition from screw couplers to Digital Automatic Couplers (DAC)entails. Production at the main marshalling yards of Sweden and Austria is analysed and compared. These two marshalling yards represent significant differences in terms of traffic throughput, physical design and organisation of production personnel. Job tasks performed by different professional roles at the marshalling yard has been surveyed as well as how personnel interact in accordance with current work processes. The research method applied in the current work has primarily involved workplace visits and interviews and hence the investigation has required a close collaboration with operators of marshalling yards. For the case studies in Sweden and Austria this has meant a comprehensive and trustful cooperation with the operator Green Cargo and the Austrian federal railways ÖBB. The current project has been integrated in WP4 of the EDDP programme as well as aligned with unions and other stakeholders through workshop sheld during the period when the project was carried out.