background and objective: obstructive sleep apnea (osa) is considered a common sleep disorder that increases the risk of traffic accidents among drivers. this study aimed to assess the association between mallampati score and stop-bang (snoring, tiredness, observed apnea, blood pressure, body mass index, age, neck circumference, gender) score in commercial drivers. materials and methods: 1743 m...

Objective: The objective of this study was to assess relationships between body mass index (BMI) and comorbid conditions within a large sample of truck drivers. Methods: Commercial driver medical examination data from 88,246 commercial drivers between 2005 and 2012 were analyzed for associations between BMI, medical disorders, and driver certification. Results: Most drivers were obese (53.3%, B...

The majority of prior research and analysis has indicated driver-related factors as the main cause of most commercial vehicle-related crashes. The main goal of the current project is to provide a greater concentration on the commercial driver in order to have the most significant impact on the number of crashes. The ultimate outcome of this study is to save lives, prevent injuries, and prevent ...

This paper highlights evidence from several instrumented vehicle studies that crash risk varies significantly among commercial truck drivers, and also cites findings from surveys of fleet safety managers and other experts on the topic of individual differences in commercial driver crash risk. Within various subject groups, 10-15% of the drivers typically account for 30-50% of the crash risk. Th...

This study evaluated the traffic-safety impact of the California Department of Motor Vehicles' Commercial Driver License (CDL) program. The program, initiated on 1 January 1989, began a new commercial-license classification and endorsement system, implemented stronger licensing standards and more comprehensive tests of knowledge and driving competency, required drivers to report specific violat...