Does it mention anything about "conflicting instructions" and "double bind stress" (damned if you do and damned if you don't) causing anxiety and depression in drivers?
Thanks.
Short answer YES. IN the top 9% of the population with police and postal workers. Long answer below from study.
These workers, therefore, have stress related symptomatology that place them in the top 9 percent of the general population for psychological distress.
Dr. Cahill reported that these employees suffered higher levels of psychological job demands, lower levels of supervisory support, higher level of sleeping problems.
UPS Package Truck Drivers were reported to be working in conditions quite similar to those previously associated with the development of stress related diseases. They were reported to be suffering a variety of symptoms and diseases quite possible related to stress, as well as experiencing a "burn out" phenomena after a period of years on the job.
The drivers reported that there existed a punitive rather than collaborative approach by front line supervisors. There was daily supervisory pressure for increased productivity through longer days, working through lunch, stressful supervisory presence in the truck on the routes, and pressure on replacement workers to outperform those on sick leave or vacation. They complained about conflicting expectations emanation from differing supervisors, and a disciplinary system in which, even for minor infractions, they were "judged guilty, and sentenced, before trail" and before arbitration of their grievance. Finally, they reported a stressful social environment at work fostered by a lack of social support from supervisory personnel
CONCLUSIONS: Job stress is a significant health hazard for UPS Package Truck Drivers. These workers scored in the top 91% of the population on the Global Stress Index. These symptoms are consistent with the higher scores on the job strain scale and higher levels of physical and psychological stress reported by Dr. Janet Cahill in her 1990 survey of Postal Workers.
Job characteristics known to cause stress, and similar to those found at the UPS Service, are present in significantly greater frequency for UPS Package Truck Drivers than for the general working population.
The costs associated with this occupational hazard will be measured by decreases in the quality of life for the employees and their families as well as likely increased workers compensation and health insurance/disability costs to the employer and the society as a whole. . When Package Truck Drivers are looked at in isolation it would appear that for broken/crushed, cuts/bruises, and puncture/abrasions UPS rates are some 3 times those for workers in similar jobs in the U.S.