Network-level optimization method for road network maintenance programming based on network efficiency
来源期刊：中南大学学报(英文版)2015年第12期
论文作者：ZHANG Lin-xue QIN Jin HE Yu-xin YE Yong NI Ling-lin
文章页码：4882 - 4889
Key words：transportation network; maintenance policy; network efficiency; time point; sensitivity analysis
Abstract: To maintain their capacity, transportation infrastructures are in need of regular maintenance and rehabilitation. The major challenge facing transportation engineers is the network-level policies to maintain the deteriorating roads at an acceptable level of serviceability. In this work, a quantitative transportation network efficiency measure is presented and then how to determine optimally network-level road maintenance policy depending on the road importance to the network performance has been demonstrated. The examples show that the different roads should be set different maintenance time points in terms of the retention capacities of the roads, because the different roads play different roles in network and have different important degrees to the network performance. This network-level road maintenance optimization method could not only save lots of infrastructure investments, but also ensure the service level of the existing transportation system.
ZHANG Lin-xue(张林雪)1, QIN Jin(秦进)1, HE Yu-xin(贺钰昕)1, YE Yong(叶勇)1, NI Ling-lin(倪玲霖)2
(1. School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China;
2. Dongfang College, Zhejiang University of Finance & Economics, Hangzhou 310018, China)
Abstract:To maintain their capacity, transportation infrastructures are in need of regular maintenance and rehabilitation. The major challenge facing transportation engineers is the network-level policies to maintain the deteriorating roads at an acceptable level of serviceability. In this work, a quantitative transportation network efficiency measure is presented and then how to determine optimally network-level road maintenance policy depending on the road importance to the network performance has been demonstrated. The examples show that the different roads should be set different maintenance time points in terms of the retention capacities of the roads, because the different roads play different roles in network and have different important degrees to the network performance. This network-level road maintenance optimization method could not only save lots of infrastructure investments, but also ensure the service level of the existing transportation system.
Key words:transportation network; maintenance policy; network efficiency; time point; sensitivity analysis
