This piece was part of Going Where You Wheel A Guide to Telegraph Ave, a booklet published by the CIL.
By 1984, Title 24 (California’s Building Code) set state wide building standards in motion which included specs for designing curb ramps at sidewalk intersections. These new specifications required a maximum 1:12, or 8% slope, to offer better usability for the widest range of users, and also required that curb ramps descend into crosswalks, differing from the original curb ramp design created by Hale and others a decade prior.