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首页> 外文会议>Annual conference of the Canadian Society for Civil Engineering >A Hybrid Model of Pavement Management System for the Rural Road Network in Bangladesh
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A Hybrid Model of Pavement Management System for the Rural Road Network in Bangladesh

机译：孟加拉国农村公路网路面管理系统混合模型

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Deterioration of rural roads due to the absence of an effective pavement management system has become a growing concern in Bangladesh. Since the allocation of government funds for maintenance operations is very negligible and foreign assistance for this purpose is very limited, unplanned and unsystematic maintenance operations cause serious deterioration of the rural road infrastructure. However, a well-planned maintenance operation must consider not only accumulated traffic loads and environmental exposure, but the social and economic benefits as well. The objective of this paper is to optimize maintenance operations of rural roads based on pavement condition and social benefits for the surrounding zones. A case study of the rural road network of the Gazipur district of Bangladesh is used to illustrate the proposed approach. The pavement performance modeling of the rural road network of the Gazipur district is based on the mechanistic modeling of roughness progression using the International Roughness Index (IRI). Social benefits of each road link were defined as a Rural Priority Indicator (RPI), which was calculated based on the hierarchy and centrality of rural functions and villages. This study identifies CAD 3 million as the minimum annual maintenance budget by which the Pavement Condition Index (PCI) of the whole road network can be increased to 83%. The maximization of the total network condition and social benefits under this budget was applied to find the optimal strategic results for pavement management. This study provides a guideline for rural road maintenance operations in Bangladesh, which will enable the government to perform the maintenance operations systematically and in a well-planned way within budget constraints.
机译：由于缺乏有效的路面管理系统，农村道路恶化已成为孟加拉国越来越关注的问题。由于对维护行动的政府资金的配置非常忽略不计，因此对此目的的外国援助非常有限，无计划和不系统的维护业务导致农村公路基础设施严重恶化。然而，规划良好的维护操作必须考虑不仅累积的交通负荷和环境曝光，而且还考虑社会和经济效益。本文的目的是根据路面状况和周围区域的社会福利优化农村道路的维护运营。对孟加拉国省古崎市农村公路网络的案例研究习惯了拟议的方法。 Gazipur区农村公路网的路面性能建模是基于使用国际粗糙度指数（IRI）的粗糙度进展的机制建模。每个道路链路的社会福利被定义为农村优先指标（RPI），该指标（RPI）是根据农村职能和村庄的等级和中心计算的。本研究将300万的CAD标识为整个道路网络的路面状况指数（PCI）可以增加到83％的最低年度维护预算。在此预算下的全网络状况和社会福利的最大化得到了应用，以找到路面管理的最佳战略结果。本研究为孟加拉国提供了农村公路维护业务指南，使政府能够在预算限制范围内系统地并以符合规划的方式进行维护行动。

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