AUTHOR=Matsumoto Akira , An Min , Van Gulijk Coen , Kaewunruen Sakdirat TITLE=Editorial: Safety, Risk and Uncertainties in Transportation and Transit Systems JOURNAL=Frontiers in Built Environment VOLUME=5 YEAR=2019 URL=https://www.frontiersin.org/journals/built-environment/articles/10.3389/fbuil.2019.00025 DOI=10.3389/fbuil.2019.00025 ISSN=2297-3362