Highway works are highly inconvenient and disruptive for society. Accordingly, four highway policy interventions were investigated in Derby, UK, for potential corresponding reductions in highway works durations. Time series analysis was used to test the durational impacts on works led by Highway Authorities (HAs) and utility industries. The modelling results demonstrated that a highway works management permit scheme (chargeable) reduced utility works durations by 5·4% (727 work days annually). Conversely, three conflated interventions – namely, the permit scheme (cost-free to HAs), JCB Pothole Master deployment and construction direct labour organisation – did not make any statistically significant difference to HA works durations; however, introducing an automated works order management system (Woms) reduced HA works duration by 34% (6519 work days annually). The key finding of this study is that chargeable permit schemes can create the impetus for change, as demonstrated by the utility industry. Furthermore, the Woms revealed that back-office efficiency can lead to on-site efficiency in works execution.

中文翻译：

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地方政府政策干预对公路工程工期的时间序列分析

公路工程对社会非常不方便且具有破坏性。因此，在英国德比调查了四项高速公路政策干预措施，以期可能相应地减少高速公路工程工期。时间序列分析用于测试对公路管理局 (HA) 和公用事业行业领导的工程的持续影响。建模结果表明，公路工程管理许可计划（收费）将公用事业工程持续时间缩短了 5·4%（每年 727 个工作日）。相反，三个混杂的干预措施——即许可计划（对 HA 来说是免费的）、JCB Pothole Master 部署和施工直接劳工组织——对 HA 的工作时间没有任何统计上的显着差异；然而，引入自动化工单管理系统 (Woms) 将 HA 工作时间缩短了 34%（每年 6519 个工作日）。正如公用事业行业所证明的那样，这项研究的主要发现是收费许可计划可以推动变革。此外，Woms 透露，后台效率可以提高工作执行的现场效率。