The main objective of the current research is to identify and prioritise the obstacles to using bicycle sharing systems (BSSs) in the Tehran metropolis. The methodology of this research is analytical-descriptive and it aims to achieve applied goals. To do so. firstly the obstacles are identified through studying the theoretical and practical foundations of the issue and then by delvin... https://www.spidertattooz.com/Nyrkki-terassormus-Teras-316L/