Roadmap for Gröna Tåget 2 — next steps

The Gröna Tåget 2 roadmap is part of a comprehensive set of roadmaps commissioned by the Swedish "Forum for innovation in the transport sector". It is written by a group consisting of members from academia, the system integrator Bombardier, SJ, Vectura and Trafikverket. It focuses on longer distance (regional and inter-regional) passenger train services as part of a multi-modal, or co-modal, transport chain. The aim of the roadmap is to suggest ideas and solutions for a future Swedish high-speed concept that delivers end customer value, satisfies societal sustainability requirements and is affordable. Based on the customer's current and future needs the passenger train service must be much more attractive, reliable and efficient. At the same time the improved traffic solution must also be commercially viable for the operators and acceptable for infrastructure managers. The roadmap focuses on the train and its interaction with the infrastructure. An action plan for a gradual realisation of a Swedish Green Train high-speed concept by 2020 is suggested. This includes introduction of C-Class trains by 2015 and Demonstrator 2015-2020. One major merit of the concept is that it can be implemented incrementally in today's railway system without major infrastructure investment. Examples of related research and innovation challenges related to comfortable journeys are e.g. acoustic comfort and improved interior design for example enabled by wide car body concepts. Further challenges that have to be addressed are bogie designs that allow higher speeds on existing non-perfect tracks. Such bogies need to have low track attrition properties while simultaneously providing good passenger comfort. Aerodynamic design for low energy consumption, low slipstream effects for platform passages at high speed, and cross wind stability are needed. Train and station facilities should be accessible for people with reduced mobility. Reduction of travel times implies reducing stop times at stations by improved boarding facilities. Further, train performance parameters such as acceleration, braking and higher speeds on existing lines must be considered. In the socio-economic calculations, a speed increase for express trains from 200 km/h to 250 km/h is tested route by route. The results show that the socio-economic return is very good on those routes where there is a relatively large proportion of track that has been built or rebuilt without level crossings since the 1990s, which reduces the need for technical upgrading. There is as a rule also free track capacity to increase the express trains' speeds. On the other main lines, where the standard is lower and capacity already strained, the benefits outweigh the costs as regards express trains' higher speeds. By means of reinvestments in new track, overhead contact wires and signalling systems that can handle 250 km/h from the outset, the object-specific costs can be brought down. There are great possibilities to introduce solutions incrementally where benefits are obtained at each step. The majority of the solutions may be applied in existing systems also internationally, which paves the way for export business opportunities. For the finance contribution of the program the possibilities from VINNOVA, Energimyndigheten and Trafikverket needs to be discussed. On the international arena this program may also fit well for cooperation to EU programs i.e Shift²Rail.


  • English

Media Info

  • Pagination: 55

Subject/Index Terms

Filing Info

  • Accession Number: 01664417
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, VTI
  • Created Date: Mar 28 2018 10:22AM