Figure 1 displays the layout of the online questionnaire developed for this project. Along the left margin are 13 questions related to accessibility barriers that may possibly be portrayed in the image. Each question is listed in a column, and to the right of the question are bullets allowing the subject to choose the severity of the accessibility barrier. By default, are questions are answered N/A, so that it is up to the subject to choose which barriers are pertinent. To the right of the questions, along the right margin of the page is the photo which the subject is supposed to rate. The photo is randomly chosen among the whole dataset. Below questions and photo are two text boxes, so that the subject can provide feedback on (1) how to adapt the environment to make it more accessibly, and (2) design ideas for an electric powered wheelchair. On the right margin of the text boxes is a submit button, where the user can click and progress to another photo.