NSERC Industrial Research Chair in the Industrialization of Building Construction

City of Edmonton - Drainage Services

Productivity Analysis and Optimization for Sewer Maintenance Operations

PhD Student: Hamid Zaman

Partner: City of Edmonton

Time Period: January 2012 to April 2015

Summary: Preventive maintenance of drainage network is an important part of urban infrastructure management. It involves various activities, such as visual inspection, low pressure flushing, high pressure flushing, catch basin cleaning, and hydromechanized cleaning. Large cities require significant budget and resources to perform the necessary cleaning and flushing activities at various locations around the city at regular intervals. This study aims at optimizing the maintenance schedule in order to improve the productivity of operations activities. The research consists of two primary modules: i) developing a forecasting model to estimate the on-site duration of activities, and ii) developing an optimization algorithm to reduce travel and unproductive time for PM works.

Flushing Vehicle used for High Pressure Flushing

Scheduled High Pressure Flushing Locations at the City of Edmonton

Sample Routes for a Subset of Maintenance Locations (not to scale)

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