The tunnel would provide a fixed link to the island, both using direct trains running from Copenhagen and with a motorail service to transport automobiles.
The tunnel would be 40 kilometers (25 mi) long and provide a one-hour transit time for cars, including loading and unloading, and a two-hour service by rail to Copenhagen via the Ystad Line and the Øresund Line.
From Rønne to Køge takes five and a half hours and has a single daily sailing, while from Rønne to Sassnitz is seasonal and offered three to ten times per week and takes three and a half hours.
Between 2000 and 2017 direct train services branded as Intercity Bornholm were available between Copenhagen and Ystad.
If the same user payment and subsidies was used to finance the tunnel, with a running time of 30 years, it would allow investments for DKK 10 billion.