The article explores how the design of trapezoidal-shaped weirs affects the flow of water over them. By analyzing a large set of data, the researchers found that the location for measuring water depth on the weir is crucial for accurate results. They also discovered that the shape of the weir and the slope of its faces impact how water flows over it, affecting the amount of water that can pass through. This study fills a gap in our understanding of how trapezoidal weirs work and provides valuable insights into optimizing their design for efficient water flow.