Developing a Five-year Maintenance and Rehabilitation (M&R) Plan for HMA and Concrete Pavement Networks
Developing a Five-year Maintenance and Rehabilitation (M&R) Plan for HMA and Concrete Pavement Networks
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制定五年维护和恢复计划（M
DOI：
10.1016/j.apcbee.2014.01.041
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
N. Hariharan
中科院分区：
文献类型：
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作者：
H. Şahin;P. Narciso;N. Hariharan
面对日益增长的需求和对环境影响的暴露，道路路面的状况继续下降，而保护它们的资源仍然有限。因此，必须系统、客观地完成路面管理任务。本文概述了制定多年路面维护和修复（M&R）计划所涉及的步骤。这包括：(1)状态评估；(2)网络清查和数据库开发；(3)识别需要M&R的路面路段；(3)需求分析；(4)影响分析。作为一个案例研究，该项目在德克萨斯A&M大学校园内的道路网络上进行，该网络由13.95英里的道路组成，其中80%和20%分别是混凝土和HMA路面。根据ASTM D 6433-07进行条件评估，并使用路面状况指数（PCI）作为路面性能的指标。然后将收集到的数据输入数据库，该数据库还包含交通和道路特征信息。建立PCI阈值以确定需要M&R的部分，并根据每个项目的长期绩效效益和生命周期成本提出最具成本效益的治疗方法。然后根据收益-成本分析对候选项目进行排序。需求估计数提供了关于纠正网络中所有缺陷所需预算总额的有意义的资料。最后，影响分析用于确定减少预算对网络状况的影响，以及需要解决的积压数量。
In the face of increased demand and exposure to environmental effects, the condition of road pavements continues to decline while resources for their preservation remain limited. Thus, the task of managing pavements has to be done systematically and objectively. This paper outlines the steps involved in developing a multi-year pavement Maintenance and Rehabilitation (M&R) plan. These include: (1) condition assessment; (2) network inventory and database development; (3) identification of pavement sections requiring M&R; (3) needs analysis; and (4) impact analysis. As a case study, the project was performed on the road network inside the Texas A&M University campus that consists of 13.95 miles of roadway, 80% and 20% of which are concrete and HMA pavements respectively. Condition assessment was done according to ASTM D 6433-07 and using the Pavement Condition Index (PCI) as indicator of pavement performance. Data collected were then entered into a database which also contains information on traffic and roadway characteristics. PCI threshold values were established to identify sections that are in need of M&R and the most cost- effective treatment based on long-term performance benefit and life-cycle cost was proposed for each project. Candidate projects were then prioritized by ranking based on benefit-cost analysis. The needs estimate provides meaningful information on the total amount of budget required to correct all deficiencies in the network. Finally, the impact analysis is used to determine the impact of a reduced budget on network condition as well as the amount of backlog that needs to be addressed.