Which group is considered at risk for collisions due to drowsiness?

Shift workers are considered at risk for collisions due to drowsiness primarily because they often work irregular hours, including night shifts or rotating shifts. These non-traditional work hours can disrupt their natural sleep patterns and circadian rhythms, leading to chronic sleep deprivation. When individuals are not adequately rested, their reaction times slow down, attention wanes, and decision-making ability deteriorates, all of which significantly increase the likelihood of being involved in a collision while driving.

In contrast, office employees typically work standard hours that align with the normal daylight schedule, which can help maintain healthier sleep patterns. College students might experience sleep challenges due to late-night studying or social activities, but they are not as universally impacted by work schedules as shift workers. Retired individuals often have more flexible hours, allowing for better sleep hygiene and recovery, which may not place them at the same level of risk for drowsiness-related collisions.