Singleton, Patrick A. http://orcid.org/0000-0002-9319-2333
Clifton, Kelly J.
Funding for this research was provided by:
National Institute for Transportation and Communities (1005)
Dwight David Eisenhower Transportation Fellowship Program (DTFH6415G00003)
Article History
First Online: 5 October 2019
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.