CASp Certified ADA Compliance - Surveying & Design Services
Contractors often neglect that truncated domes (detectable warnings) must be placed at the edge of the path of travel area, but not inside the parking access aisle, also the words "No Parking" must be on the edge of the parking access aisle.
Contractors often neglect that the ISA (international symbol of accessibility) must be visible when a car is parked in the stall, thus must be placed on the edge of the parking stall area.
It is often the Designers and contractors do not measure correctly the dimension of the parking space when it is slanted.
Often Designers neglect to mark the "drop zone" with stripping, strips are important so other vehicular don't park in the designated drop zone (5'x20')