Incorporated Administrative Agency Public Works Research Institute 

Road Maintenance

Road Maintenance>Research

Improvement of Responsive Maintenance of Road Structures: 2009-2011  

Both proactive activities and reactive activities are essential in a road maintenance management system. Preservation has received much attention of road administrators. Responsive maintenance, on the other hand, is a concept that is yet to be incorporated in many still-evolving management systems. The purpose of this research is to improve the efficiency of responsive maintenance systems.

In 2009 fiscal year, the state of responsive maintenance practices was surveyed. For example, the Asphalt Industry Alliance  has conducted an annual survey which investigates the effects of the level of maintenance funding on the condition of roads and the impact on planned maintenance, for local authority controlled roads in England and Wales. The main result is as follows:
1) Key findings of the survey clearly demonstrate that over a quarter of the total budget has been spent on responsive maintenance, that the agencies would take more than ten years to clear the backlog of carriageway maintenance work even if they had adequate funding and resources in place, and that the amount of staff time spent on defending claims has increased.
2) Excessive expense to responsive maintenance practices has pressed the budget for planned maintenance programs. The authorities argue that the delay of planned maintenance programs is the reason of undesirable state of roads and it causes a great deal of trouble to road users consequently.
The business process of responsive maintenance activities will be analyzed, and the improvement framework of responsive maintenance will be examined in the future.

In 2010 fiscal year, the business process of responsive maintenance activities was analyzed from the viewpoints of road administrators and users, and the improvement framework of responsive maintenance was examined. The main result is as follows:
1) Discovery (recognition of problems) and response (settlement of problems) are the agency's tasks in a responsive maintenance system. Maintenance needs are discovered by the administrator or recognized with a call from the traveling public.
2) The public can participate in the discovery stage as a potential reporter about road performance, and in the response stage as a judge of the agency's performance.
3) Two stages and three objectives (cost reduction, time shortening and customer satisfaction) can produce six basic strategies/policies for system improvement. This framework gotten from the viewpoint of a system owner is consistent with the perspective of system users as a beneficiary and a taxpayer.
Based on the framework developed this year, considering the state of responsive maintenance practices in Japan and overseas, some tactics/means to come to a successful responsive maintenance system will be examined in the future.

Improvement of Maintenance Technology of Light Traffic Road in Rural Area: 2006-2008  


There are proactive maintenance and reactive maintenance in road maintenance. Since reduction for road maintenance expenses is urgent business, study about AMS which is the former representation is advanced by MLIT. On the other hand, the latter is directly connected with the daily service level, correspondence of each road administrator is various. Most local road administrator have high weight of the latter approach, and the efficiency improvement of responsive maintenance is an important problem. So domestic and abroad Best Practices about efficiency improvement and Hints&Tips about the new technology and the method which is possible to introduce into the field are desired.
This research is executed aiming to analyze a domestic and foreign Best Practices with the improvement of the maintenance efficiency of the rural light traffic road, and to propose a new technology and the technique that can be introduced into the maintenance field in our country.

In 2007, Good Practices in improvement of the road maintenance management efficiency (reduction in cost and maximization of VFM, etc.) from the past document and the internet, etc. were collected and each case was analyzed from the point of view which are ingredient, equipment, information and system, etc..  In particular, response time as a performance indicator for responsive maintenance was discussed. This indicator was classified as a service-output indicator. Current status of standards and purposes of this indicator mainly in U.S.A. was surveyed. It was shown that this indicator was put to practical use for administrative rules, contract conditions or communications between administrators and residents. It was clarified that improvement of this indicator was effective for rise of customer satisfaction.

In 2008 fiscal year, cases from the past document and the Internet, etc. in improving the road maintenance efficiency were collected, and the benchmarking as the technique that was able to be introduced into the maintenance field in our country were analyzed. The main result is as follows;
1)Not only Best Practices with the quantitative effect and results but also reference cases were divided into the system, information, the material, and the equipment, and the outline was placed in the PWRI homepage.
2)It was clarified that customer-driven benchmarking was effective as the management tool. On the other hand, the continuance of the top management was a key in execution through the cooperation with other organizations for two or more years.
The research to improve the responsive maintenance efficiency of the road without limiting the object to the rural light traffic road is continued. 
 



 

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