en Optimal design Optimal design پژوهشي Research <span style="font-size:11.5pt"><span style="text-justify:inter-ideograph"><span style="text-autospace:none"><span new="" roman="" style="font-family:" times=""><span style="color:black">Improving the quality of open spaces and human comfort is necessary for more human-inaccessible spaces. Therefore, bus stations as open spaces for traveling thousands of people continuously are considered essential in absorbing sun rays and providing comfort. This paper investigates the performance of BRT stations in Tehran province in the summer, considering the highest shading. The second stage proposes a new graphic cable-stayed roof to compare the sun&#39;s path and shade. Ten stations of Moein-Tajrish terminals with South-North orientation were selected in this regard. Then, all the station details were calculated and analyzed in the Grasshopper Modeling Software. And the shadow and sunlight were evaluated and analyzed during the summer months between 12 am to 2 pm at noon. In order to evaluate the compatibility of the selected samples, three variables, including orientation, the height of the awning, and the slope of the awning, were considered orientation of 5, the height of 1, and the gradient of 19 introduced as the most optimal model. Also, studies and analyses were carried out in Honey Bee & Ladybug plugins, including Qualitative Analysis, Hourly Quantitative Analysis, and Energy Quantitative Analysis. The results showed that the selected case sample is more than 55% in the desired shading. The second stage proposes a new graphic cable-stayed roof to compare the sun&#39;s path and shade for the structure.</span></span></span></span></span><br> &nbsp; External shading, evolutionary parametric optimization, energy demand, urban space, temporary systems. 367 377 http://ijoce.iust.ac.ir/browse.php?a_code=A-10-66-381&slc_lang=en&sid=1 A. Fatholahi 180031947532846002614 180031947532846002614 No Minestry of Culture and Heritage, Shahrekord, Iran S. Sadat Sajadieh 180031947532846002615 180031947532846002615 No Junior Architect at Horno Company, Isfahan, Iran R. Kamgar kamgar@sku.ac.ir 180031947532846002616 180031947532846002616 Yes Department of Civil Engineering, Shahrekord University, Shahrekord, Iran R. Rohani Sarvestani 180031947532846002617 180031947532846002617 No Department of Computer Engineering, Shahrekord University, Shahrekord, Iran R. Alipour 180031947532846002618 180031947532846002618 No Department of Civil Engineering, Shahrekord University, Shahrekord, Iran