...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Management in Engineering >Alternative Contracting Methods: Modeling and Assessing the Effects of Contract Type on Time-Cost-Change Performance
【24h】

Alternative Contracting Methods: Modeling and Assessing the Effects of Contract Type on Time-Cost-Change Performance

机译：替代承包方法：建模和评估合同类型对时间成本更改性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although the use of alternative contracting methods (ACMs) has become increasingly common, little is known about their effects on a project's time-cost-change performance. This study draws from 2,572 project datapoints, addressing this research gap by plotting, analyzing, and validating high confidence performance indicators. The effects of different ACMs on project time, cost, and change performance were all evaluated and time-cost performance prediction models developed and tested. The results reveal that the use of incentives/ disincentives is preferable for reducing the duration of a project. Lump-sum contracting is an effective choice for onbudget project delivery, while cost-plus-time bidding is significantly less effective than incentives/disincentives and no-excuse bonus contracting. Notably, the results also convey that ACMs with large project sizes are more prone to schedule delays and cost overruns. The robustness of the predictive models was verified by a predicted error sum of squares validation. The findings of this study will help state transportation agencies make better-informed decisions by providing foresight regarding the pros and cons of ACMs for aspects of project time-cost-change performance. The use of the predictive models will also assist agencies in justifying the probable time-cost impact of project change orders, enabling them to conduct more reliable risk assessments and develop more realistic contingency plans in the project scoping phase.
机译：虽然使用替代合同方法（ACMS）越来越普遍，但对它们对项目的时间 - 变化性能的影响很少。本研究从2,572个项目数据点绘制，通过绘制，分析和验证高置信性能指标来解决这一研究差距。不同ACMS对项目时间，成本和变化性能的影响是开发和测试的所有评估和时间成本性能预测模型。结果表明，使用激励/抑制剂的使用是优选减少项目的持续时间。 Lump-Sum Contracting是诺布纳税诊所项目交付的有效选择，而成本加上竞价比激励/抑制和拒绝奖金承包的成本加上竞价明显不那么有效。值得注意的是，结果还传达了具有大项目尺寸的ACM，更容易安排延迟和成本超支。通过预测的正方形验证验证的预测误差和验证了预测模型的稳健性。本研究的调查结果将有助于国家运输机构通过向ACMS的优缺点提供专业和缺点来提出更好的明智的决定，以获得项目时间 - 成本更改绩效的各个方面。预测模型的使用还将协助各机构在合理的是项目变更订单的可能性影响，使他们能够开展更可靠的风险评估，并在项目范围阶段开展更现实的应急计划。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号