“…Maritime sustainability could be also separated and examined in three dimensions, as same in other fields. Considering maritime sustainability research on ports, some main topics could be sustainability indicators (Shiau & Chuang, 2015;Sislian et al, 2016;Lim et al, 2019), green ports (Chang & Wang, 2012;Pavlic et al, 2014), port management (Tezcan, 2019;Ashrafi et al, 2020), port operations (Kim & Chiang, 2014), etc. At the same time, research on shipping could be grouped as; fuel efficiency and alternative/renewable fuels (Mak et al, 2014;Zhao et al, 2015;Meng et al, 2016;Atilhan et al, 2021), shipping emissions (Bouman et al, 2017;Rehmatulla et al, 2017), speed optimization Psaraftis & Kontovas, 2014), etc.…”