Kerry Mallon1, Joanne M Wood. 1. Centre for Eye Research, School of Optometry, Queensland University of Technology, Victoria Park Road. Kelvin Grove, Brisbane, QLD 4059, Australia. kmallon@optusnet.com.au
Abstract
OBJECTIVE: The purpose of this study was to validate an assessment tool used by occupational therapists to evaluate on-road driving performance. METHODS: The driving assessment was conducted over a 15-km route that consisted of a range of traffic situations and contained both directed and self-directed navigational instruction. The driving performance of four groups of drivers of different ages and visual characteristics was assessed independently by an occupational therapist and driving instructor using a range of scoring criteria. RESULTS: The occupational therapist scores were significantly affected by the drivers' age and visual characteristics (directed navigation, F(3,133) = 6.05, p = 0.001; self-directed navigation, F(3,133) = 5.04, p < 0.002), and these group differences were greater for self-directed navigational instruction. The occupational therapist scores were highly correlated with the driving instructor's global driver safety rating (r = 0.76, p < 0.001). DISCUSSION: The driving assessment instrument was a valid measure of on-road driving performance relative to an independent global driving safety evaluation. The instrument provided detailed information regarding driving performance and highlighted areas of difficulty, particularly when drivers followed self-navigational instruction.
OBJECTIVE: The purpose of this study was to validate an assessment tool used by occupational therapists to evaluate on-road driving performance. METHODS: The driving assessment was conducted over a 15-km route that consisted of a range of traffic situations and contained both directed and self-directed navigational instruction. The driving performance of four groups of drivers of different ages and visual characteristics was assessed independently by an occupational therapist and driving instructor using a range of scoring criteria. RESULTS: The occupational therapist scores were significantly affected by the drivers' age and visual characteristics (directed navigation, F(3,133) = 6.05, p = 0.001; self-directed navigation, F(3,133) = 5.04, p < 0.002), and these group differences were greater for self-directed navigational instruction. The occupational therapist scores were highly correlated with the driving instructor's global driver safety rating (r = 0.76, p < 0.001). DISCUSSION: The driving assessment instrument was a valid measure of on-road driving performance relative to an independent global driving safety evaluation. The instrument provided detailed information regarding driving performance and highlighted areas of difficulty, particularly when drivers followed self-navigational instruction.
Authors: Sjaan Koppel; Judith Charlton; Jim Langford; Zafiroula Vlahodimitrakou; Marilyn Di Stefano; Wendy Macdonald; Barbara Mazer; Isabelle Gelinas; Brenda Vrkljan; Shawn Marshall Journal: Ann Adv Automot Med Date: 2013