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首页> 外文会议>Annual Conference of the Ergonomics Society of Australia >Evaluation of Fatigue During Motorcycle Mail Delivery
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Evaluation of Fatigue During Motorcycle Mail Delivery

机译：摩托车邮件交付中疲劳评估

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The most significant occupational hazard for motorcycle Postal Delivery Officers (PDO) is a crash. An impairment of the PDOs reaction time or alertness due to fatigue significantly increase the risk of a crash (a parallel may be seen here with impaired reaction times due to alcohol consumption). A recent introduction of new mail sorting equipment may increase the cognitive load for the PDO and the potential for this to impact on fatigue led to a review of fatigue levels. Additionally, the amount of mail being sorted and delivered by PDOs has increased over recent years and may also contribute to PDO fatigue levels. There were 76 male participants from 8 delivery centres in Victoria and 12 from Queensland. Dependent variables included error rates, reaction time, self ratings of mood and heart rate. Computer based performance tests conducted by the PDOs during motorcycle delivery showed no slowing in reaction time, although there was a non-significant trend towards an increase in errors as the shift progressed. Self ratings of work demands such as effort, frustration and time pressure increased with length of shift. This has an implication for the motor cycle component of their work. However it may be reassuring that physical demand was not rated higher at the end of the day and PDOs reported that they maintained their levels of alertness across the shift. Similarly, active heart rate measures indicate only light to moderate physical effort. Moderate increases in delta heart rate occurred during motor cycle delivery and peak increases were probably associated with loading bikes. The study indicated that PDO fatigue indicators assessed during normal operations were not significantly affected by the introduction of the new sorting process or increased mail volumes, but some impact in mood was noted after prolonged overtime where shifts exceeded 10.5 hours.
机译：摩托车邮政交付人员（PDO）最重要的职业危害是崩溃。由于疲劳而导致的PDO反应时间或警觉性的损害显着增加了崩溃的风险（这里可以在这里可以看到由于醇消耗受损的反应时间受损）。最近引入的新邮件分拣设备可能会增加PDO的认知负荷，并对疲劳的影响导致疲劳水平的审查。此外，PDOS排序和交付的邮件量近年来增加，也可能有助于PDO疲劳水平。维多利亚州的8个交付中心有76名男性参与者，来自昆士兰州。依赖变量包括错误率，反应时间，情绪和心率自称。摩托车交付期间PDO的基于计算机的性能测试在反应时间内没有放缓，尽管随着转变进展而导致误差的增加存在非显着趋势。努力，挫折和时间压力等工作需求的自我评级随着轮流的长度而增加。这对其工作的电机循环分量有所意义。然而，可能令人放心的是，在一天结束时，物理需求并未评定，并且PDOS报告说，他们在整个班次中保持了他们的警觉水平。同样，活跃的心率测量仅表明光线适度的身体努力。在电机循环输送期间发生增量心率的增量增加，并且峰值增加可能与装载自行车有关。该研究表明，在正常运作期间评估的PDO疲劳指标不会受到引入新分类过程或增加邮件量的显着影响，但在长时间的转变超过10.5小时后，注意到情绪的一些影响。

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