Related Experiment Video
Updated: Apr 20, 2026
13:48
Design and Construction of an Urban Runoff Research Facility
Published on: August 8, 2014
13.7K
LID-BMPs planning for urban runoff control and the case study in China
Haifeng Jia1, Hairong Yao2, Ying Tang1
1School of Environment, Tsinghua University, Beijing 100084, China.
Journal of Environmental Management
|December 3, 2014
Summary
Low Impact Development Best Management Practices (LID-BMPs) offer cost-effective urban runoff mitigation. This study proposes a planning procedure and analyzes scenarios for LID-BMPs implementation, optimizing cost-effectiveness and performance.
Area of Science:
- Environmental Engineering
- Urban Planning
- Water Resource Management
Background:
- Urban runoff poses significant environmental challenges.
- Low Impact Development Best Management Practices (LID-BMPs) are recognized for cost-effective mitigation.
- Effective planning tools are needed for LID-BMPs implementation.
Purpose of the Study:
- To propose a procedure for planning and analyzing LID-BMPs using a decision support tool.
- To evaluate different LID-BMPs implementation scenarios for cost-effectiveness and performance.
- To conduct a case study on a college campus in Foshan, China.
Main Methods:
- Selection of potential LID-BMPs based on site information.
- Analysis of four runoff control scenarios using the SUSTAIN model.
- Optimization of LID-BMPs implementation using the non-dominated sorting genetic algorithm-II (NSGA-II).
- Sensitivity analysis of hydrologic and water quality parameters.
Main Results:
- Identified optimal solutions for least-cost and maximized performance LID-BMPs scenarios.
- Quantified the cost-effectiveness of different implementation strategies.
- Demonstrated the utility of the proposed procedure and decision support tool.
Conclusions:
- The proposed procedure effectively supports LID-BMPs planning and analysis.
- Optimized LID-BMPs implementation can achieve significant runoff control benefits.
- Cost-effectiveness analysis is crucial for sustainable urban development.
Related Concept Videos
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
384
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
384
01:14Conservation of Mass in Moving, Nondeforming Control Volume
1.4K
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
1.4K
01:27Design Example: Design of an Irrigation Channel
1.2K
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
1.2K
01:27Laminar Flow
2.7K
Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as:
2.7K
01:19Design Example: Maintaining Level of an Embankment
545
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
545
01:30Environmental Applications of Microorganisms
1.5K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.5K