Forslag til møteplan

Identifying Water Mains for Rehabilitation.
R. A. Dupont*, M.Sc., A. D. Moen* B.Sc., A. Kvam**, M.Sc,
*Glitre Water Works, Fagerlia 30, 3011 Drammen, Norway, [e-mail], [e-mail]

**Geodata as, Schweigaardsgate 28, 0133 Oslo, Norway, [e-mail]

Keywords: GIS model, leakage control, water main rehabilitation, repair or replace,

Abstract

In the region of Drammen – Norway, increased focus on leakage control on potable water mains has been initiated, and a number of activities to reduce the current water losses are taken. One is the establishment of a new GIS based tool for selecting water mains in distribution networks that are in need of rehabilitation. The new tool is based on multi criteria methods for comparing water mains, using several input parameters. Using this tool the municipal engineers get a tool that shifts the way of selecting water mains for rehabilitation from being based on selecting water mains due to the number of leakages or to follow the rehabilitation of other infrastructure to a more proactive approach based on a number of criteria such as leakage frequency, materials and importance of the water mains.