Relation of useful field of view and other screening tests to on-road driving performance

The purpose of this study was to examine the value of a clinical driving as sessment battery in predicting performance on an on-road driving test. 43 p articipants referred to the Bryn Mawr Rehab Adapted Driving Program for eva luation of driving ability underwent an evaluation consisting of a predrive r screening and an on-road driving rest. The predriver screening included a vision screening, a reaction time task, a split-attention task, the I-loop er Visual Organization Test, verbal and symbolic sign recognition, and asse ssment of Useful Field of View. Logistic regression analyses were applied t o identify which predriver screening variables could be used to predict out come on the on-road driving Lest (pass/fail); UFOV(R) was that best single predictor. The addition of screening tests beyond UFOV(R) alone did not inc rease predictive validity. These findings suggest that UFOV(R) may serve as an indicator of the need for further driving assessment.