Girardin, Viviane
Grung, Merete
Meland, Sondre
Funding for this research was provided by:
Statens vegvesen (604133, 604133, 604133)
Norges Forskningsråd (160016, 160016, 160016)
Article History
Received: 31 December 2019
Accepted: 5 June 2020
First Online: 2 July 2020
Competing interests
: The authors declare no competing interests.