Abstract
This study is directed toward re-establishing the secondary control interface between disabled drivers and their vehicles that has been changed by their disabilities. Through an evolutionary design process, one design was developed and tested-TALK. Three design studies were conducted. Study I tested the task completion times for the new TALK system against the clients' current controls. The accuracy of responses was compared between able-bodied and physically challenged drivers while using the TALK system in Study 2. Study 3 tested the accuracy of the TALK system against a modification of a current control interface system. Results from the three studies indicate that the TALK system would be suitable for use as a critical secondary control system for vehicles for the physically challenged. The vocabulary within the TALK system could be used in a simple speech recognition system to further improve the design.
Lostetter, Michael F (1995). Designs for critical secondary control layouts for vehicles for the physically challenged. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1995 -THESIS -L676.