“…A total of ten studies focused on accessibility in High Educational Institution (Delnevo et al, 2018;Dinc Uyaroglu, 2021;Eldridge et al, 2022;Lawrence, 2021;Ozdemir & Sungur, 2022;Porto et al, 2022;Prandi et al, 2021;Rafferty, 2011;Torkildsby, 2017, seven studies focus on Student with Disabilities ((Dinc Uyaroglu, 2021; Edwards & Larson, 2022;Parker et al, 2021;Porto et al, 2022;Rantanen et al, 2015;Vogt et al, 2022), eight studies discussed on Universal Design theory and new term of UD (Dinc Uyaroglu, 2021; Edwards & Larson, 2022;Nah & Lee, 2016;Ozdemir & Sungur, 2022;Prandi et al, 2021.;Torkildsby, 2017;Van Eck et al, 2022;Xu et al, 2022, and out twenty-two studies, twelve concentrated on outdoor environment Boeri et al, 2020;Bozkurt, 2021;Delnevo et al, 2018;Dinc Uyaroglu, 2021;Gasparovic & Sladovic, 2021;Nah & Lee, 2016;Parker et al, 2021, Prandi et al, 2021, Rantanen et al, 2015Samsudin et al, 2019;van Eck et al, 2022;Ytterhus & Åmot, 2021. In addition, ten studies applied qualitative approach while two studies employed a mix methods (qualitative + quantitative) approach. The remaining studies (10) used quantitative analysis methods.…”