Jarðgöng á áætlun. Mat á arðsemi, umferðaröryggi, tengingu svæða og byggðaþróun (updated in May 2023).
Authors: Hjalti Jóhannesson and Jón Þorvaldur Heiðarsson - report
Authors: Hjalti Jóhannesson, Rannveig Gústafsdóttir and Bára Elísabet Dagsdóttir - report
Authors: Bára Elísabet Dagsdóttir and Rannveig Gústafsdóttir - report, comparison between 2020 and 2022