This was my poster presentation at the 101th Annual Meeting of the Transportation Research Board in Washington, DC in January, 2022. (The paper is currently under review for publication.) I will provide a link to the paper once it is published. To cite the poster in APA style, please use this:
Gebresselassie, M. (2022, January). Wheelchair users’ perspective on transportation service hailed through the Uber and Lyft apps. [Poster presentation]. Transportation Research Board, Washington, DC.

There is one correction I would like to highlight here. Wait times by rider’s wheelchair type is 33 minutes for those using motorized wheelchair (unlike the 52 minutes shown in the poster by mistake) and 17 minutes for those using manual wheelchair. The paper under revision has the correct finding.