Design speed for new high-speed lines
The research project produced the HSLdim model for planning of high-speed lines. Demand, supply and costs are included to optimise design speed by means of CBA. The optimal design speed for the Swedish case was found to be 325350km/h. The share of ballastless track has influence on optimal speed. Future needs must be taken into consideration when choosing design speed.
ballastless track high-speed rail (hsr) green train economic assessment infrastructure planning