According to Dr. Potts, "On our campus, cyclists are unofficially allowed to ride wherever they want. There is no enforcement of any existing laws, including the one which prohibits bikes on sidewalks or riding against traffic."
"In observational portion of the study, we watched and counted cyclists crossing the crosswalks. A no-bikes symbol was painted on most of our crosswalks last spring. Despite those symbols, 90% of cyclists rode across the crosswalks [of 645 cyclists observed]."
In the survey, "an astonishing 24% of students report having been struck by a bike while walking on campus."
Here's a letter to the editor from a pedestrian who's been hit twice by sidewalk cyclists in the last month. Translation note: "pavement" is UK-speak for "sidewalk."