Understanding water sensitivity analysis using MUSIC modelling

MUSIC (Model for Urban Stormwater Improvement Conceptualization) is a computer model representing a project or catchment area, the drainage connections and a series of stormwater treatments. It simulates pollutant transport, runoff behaviour, and the effectiveness of stormwater treatment measures. It allows scenario analysis and compliance assessment to optimize urban stormwater management strategies.

Why use MUSIC?

• Simulate urban stormwater systems from the individual lot to suburb scale
• Estimate the potential for stormwater harvesting and reuse and understand the effects on downstream flows and water quality
• Model pollutants, including suspended solids, total phosphorus and total nitrogen
• Compare the water quantity, quality and cost/benefit objectives of different treatment options, such as swales, bio-retention systems, rainwater tanks, wetlands
• Design urban development proposals that meet WSUD standards.

At Loka Consulting Engineers we specialize in conducting water sensitivity analysis using MUSIC (Model for Urban Stormwater Improvement Conceptualisation) modelling to optimize stormwater management strategies while ensuring compliance with local regulations and minimizing environmental impact.

• Data Collection and Analysis: We begin by gathering comprehensive data on the study area, including hydrological data, land use maps, and infrastructure details. This forms the basis for our modelling efforts.
• Model Calibration: Using validated data sets, we calibrate the MUSIC model to accurately represent the local hydrological conditions and stormwater management practices.
• Scenario Development: We develop multiple scenarios to explore different what-if situations, such as changes in land use, climate scenarios, or infrastructure upgrades.
• Sensitivity Analysis: Through rigorous sensitivity analysis, we identify critical parameters that significantly influence stormwater outcomes. This helps prioritize investments and design improvements that yield the greatest impact.
• Optimization and Recommendations: Based on the analysis results, we recommend optimized stormwater management strategies tailored to enhance resilience, minimize flood risk, and improve water quality in urban environments.