Performance assessment of the operational management of urban drainage systems: a case study of Bejaia City, Algeria.

Over the recent years, managers of the Algerian National Sanitation Office (ONA) have been worrying about the degraded state of their Urban Drainage Systems (UDS). This infrastructure failure is due essentially to the lack of funding and absence of adequate structured methodology for diagnosis and maintenance. As a result, ONA's managers found it very interesting to get a tool that allows them to assess their management of UDS operation. The aim of this paper is therefore to provide an assessment tool to managers for a good network operation. The adopted approach is participative and takes into account the specific local context. Six performance indicators, grouped into two criteria, have been constructed to achieve this objective. These indicators have been chosen for their effectiveness; they are scaled to get their performance scores according to a scaling constructed here based on standards when available and to the ONA expert's recommendations. The developed tool is applied to the UDS of Bejaia City, in north-eastern Algeria. The assessment and the analysis of the performance evolution of these indicators for the period 2017-2021 are carried out. The results highlighted successes that can be maintained as well as weaknesses that need to be improved.

Development of an assessment tool for infrastructure asset management of urban drainage systems.

The present paper deals with the improvement of infrastructure asset management of urban drainage systems (UDS). A numerical tool for assessing the existing management procedures is proposed. It is based on a participatory methodology for the construction of a set of performance indicators. This methodology consists of two phases. The first concerns the identification of priority objectives, criteria and indicators related to the management of the UDS infrastructure. The second phase concerns the assessment of the global performance for each identified objective. Performance measurement scales are first defined for all the elements of the proposed methodology. Then, the Fuzzy Analytical Hierarchy Process (FAHP) is used for the weighting stage, and the Weighted Sum Method is used for the aggregation of indicators and criteria. To illustrate this methodology, a case study concerning Bejaia City in northern Algeria was carried out. Two priority objectives are identified for this case, they are divided into 6 criteria and 31 indicators. The results of the application of the developed tool highlighted some weaknesses that need improvements in the actual management procedure applied by the local sanitation services.

Decision support for sustainable urban drainage system management: a case study of Jijel, Algeria.

This paper aims to develop a methodology to support the sustainable management of Urban Drainage Systems (UDSs) in Algeria. This research is motivated by the various difficulties that the National Sanitation Office (ONA) has in managing this complex infrastructure. The method mainly consists of two approaches: the top-down approach and the bottom-up approach. The former facilitates the identification of factors related to a sustainable UDS, the development priorities and the criteria available to managers. The latter assesses UDS performance using the weighted sum method to aggregate indicators or criteria weighted using the Analytical Hierarchy Process (AHP). The method is demonstrated through its application to the UDS in the city of Jijel, Algeria.