276 Ergonomics in the Automotive Design Process
changes such as wheelchair access (modications to doors/seats, addition of ramps or chair lifts),
controls, displays, etc.
With greater use of electronics, wireless, and drive-by-wire technologies, it will be easier in the
future to modify vehicles with fewer compromises for space and occupant protection issues. For
example, an optimized joystick or lever steering control may offer mobility to persons who have
neither the range of movement nor the dexterity to operate a multiple-turn steering wheel with one
limb. However, the alternative controls can be difcult to learn and use effectively and impose sig-
nicantly different workloads in different individuals.
Better fastening systems for wheel ...