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Case Study: Medical Recovery Benchmark

Mr. H

Background Information:

Mr. H. requested a Driver Competency Assessment from Century Driving Group to ensure it was safe for him to get back behind the week after recovering from a stroke.

 

Driving Characteristics:

All drivers are scored on 4 discreet variables: speed, headway, junctions, vehicle control, and two composite ones: dynamic time management and dynamic space management.  Overall Mr. H’s driving was in the lower end of the average range.  Drivers can use either space or time to control their environment.  Mr. H uses time more effectively than space (DSM - dynamic space management and DTM - dynamic time management).  Both time and space were in the lower end of the average range.  Mr. H was below average on junctions (JUN - junctions; understanding and use of the road system).  On headway (HEA - headway; interaction with other road users) Mr. H scored in the lower end of the average range.  Mr. H was clearly below average on speed (SPD - appropriateness of speed choices for road and traffic conditions).  On vehicle (VEH - vehicle handling skills) Mr. H scored in the average range.  Overall this driver's scores were relatively consistent on individual measures but less consistent between all measures taken suggesting that there are areas that could easily be improved that would raise his driving skill given that he scored higher on some variables.

 

Task Loading Conditions:

During the drive Mr. ­­­H was scored while driving normally, while following a set of written navigational instructions and pointing out a predetermined set of addresses and while counting backwards by threes.  Mr. H showed some difference between driving normally and driving while wayfinding (multitasking), suggesting this driver could develop better strategies to deal with competing demands.  Mr. H showed no difference between driving normally and driving while counting backwards (internal distraction) suggesting that Mr. H has developed some control over his allocation of attentional resources.

 

Segments:

While each segment was approximately three minutes long, some segments were more complex than others based on a predetermined set of criteria.  Mr. H showed no differences between driving in complex and simple environments suggesting that he can handle both complex and simple driving situations equally poorly.  

 

Recommendations:

Mr. H is a low average driver who could easily raise his overall driving performance.  This driver should undergo remediation to raise his overall safety margins as found in the driver competency assessment across all areas of driving.  This driver should be re-evaluated upon completion of remediation.