Resource efficient coordinated maintenance & rehabilitation of streets and pipes for water supply and sewage-RECO

Purpose and goal

A model and a working method have been developed according to the application to facilitate coordination of renewal of streets and pipes. The results from the project include 1) a routine in QGIS to divide streets in suitable segments, 2) a python code that models the optimum “coordination window” for streets and pipes based on the segments in 1), and relates to costs, CO2-footprint and disturbances. The coordination window is the basis for the 3) working method that has been suggested for coordination of renewal and maintenance of infrastructure.

Expected results and effects

Results from REKO give guidance about when renovation of streets and pipes could be coordinated. Long-term sustainability gains can be achieved with a simple coordination criterium applicable in a systematic and time-efficient way during short to middle-term decision making. When modeled factors are given the same weights, and a municipality has approximately the same type of infrastructure as Luleå, these gains should be highest when the coordination criterium is to underutilize technical lifetime to a maximum of 20 years. REKO opens up for new thinking and new working methods.

Planned approach and implementation

Extensive work has been put on building the model to obtain the coordination criterium (coordination window). The data collection was limited to the streets and pipes of Luleå. To divide the data into manageable segments as well as deriving a cost matrix have been important work as well. For data concerning costs, Stockholm Water has contributed with as well. Other project partners have contributed through workshops and seminars and given feedback on the modeling results. In the end of project the work method was created.

External links

Här har nyheter från projektet publicerats. Även rapporten från projektet kommer att publiceras där.