Quick Cost Estimation of Expressway Routine Maintenance Based on Historical Data
Shi Xiaoli,
Zhang Ming,
Wang Feng,
Zhang Ping
Issue:
Volume 3, Issue 3, September 2018
Pages:
66-73
Received:
26 September 2018
Accepted:
23 October 2018
Published:
12 November 2018
Abstract: At present, costs of expressway routine maintenance are mainly estimated by calculations of the total costs of the maintenance activities of all structures including subgrades, pavements, bridges and culverts, tunnels and traffic facilities. In this method, engineering quantities of various maintaining activities are calculated in advance and then they are multiplied by the unit prices of each maintaining activity respectively in order to get the total costs. Considering the difficulty in accurately estimating the repairing quantity while calculating the costs of expressway routine maintenance, the paper deeply explores identified historical data of the costs of expressway routine maintenance by an improved Bootstrap method. Conclusion is drawn on the annual cost interval per lane kilometer of the routine maintenance of subgrades, pavements, bridges and culverts, tunnels and traffic facilities on expressways of Shaanxi Province as well as the proportion intervals of structures mentioned above. An efficient method by which calculations and evaluations are based on cost intervals and proportion intervals respectively is raised to estimate the engineering costs of expressway routine maintenance. The method is proved to be a new reliable and accurate one to estimate the costs of expressway routine maintenance as it efficiently calculates the engineering costs in real-life projects.
Abstract: At present, costs of expressway routine maintenance are mainly estimated by calculations of the total costs of the maintenance activities of all structures including subgrades, pavements, bridges and culverts, tunnels and traffic facilities. In this method, engineering quantities of various maintaining activities are calculated in advance and then ...
Show More
