| This research examines the needs of wheelchair users in using existing public restrooms designated as wheelchair accessible and proposes a new design based on those needs. | This research is focused on finding the needs of motorbike riders in Tehran. our main target market for this motorbike helmet was young generation of riders, usually from mid-low social class citizens of Iran. | Through this research, it became apparent how the social media had changed the way people interact with one another. We were able to uncover basic social networking difficulties and inefficiencies | To measure the level of familiarity with sustainable development, University students responded to a three-part survey. Survey results exhibited great variability. | The focus of this study is the accessories that Female design students at college of design use to carry their school materials and personal items to/from school. |