Seeking individuals who use wheelchairs as their primary means of mobility to participate in a research study being conducted by the Rehabilitation Engineering Reseach Center (RERC) at the University of Pittsburgh. This study is designed to investigate different aspects of transportation use by wheelchair users and the risk and nature of injuries to these individuals involved in motor vehicle accidents. It is not necessary that you have been in an automobile accident to participate. Participants will be asked to answer a short survey, including questions about the wheelchair, use of transporation and any motor vehicle accidents that may have occurred. Eligible subjects will receive $20.00 for their time and effort. If you are interested please contact Ashley Rotko by phone: (412)383-7047, or by email: karst55+@pitt.edu. Thank you!