Tackling Water Logging in Subways: Solutions and Insights

Whenever it rains, even a little, many subways experience water logging. If the rain continues, the subway becomes completely flooded. This raises several questions: Why does water logging occur in subways? Is there a solution?

Designing any product or process involves extensive analysis, testing, and consideration of various failure modes. Only after thorough evaluation is the product or process launched or implemented. When it comes to subways, water logging is identified as one of the potential failure modes. Historical data on rain and flood patterns in a particular area provide information about the amount of water that can accumulate. Subways, being low-lying areas, can easily be calculated for the amount of water diverted to them based on the slope, intensity of rain, etc.

Soil water absorption capacity can be analyzed through soil properties. Parameters like soil porosity and permeability help determine the water absorption rate and holding capacity. Soil porosity is the percentage of open spaces or voids within a volume of soil, while permeability is the rate at which water moves through interconnected pores within the soil.

By understanding water levels and soil properties, the necessary amount of openings in concrete or asphalt can be analyzed. Providing sufficient openings can help reduce water logging. If the openings are not sufficient, constructing a recharge well near the subway and diverting water to it can help recharge the groundwater in the region. Additionally, water pump vehicles should be available as an emergency measure to pump out water from the subway. The pumped water should be drained into a recharge well instead of nearby areas to prevent it from returning.

Subways have been introduced in urban areas and are starting to appear in rural areas as well. While they are intended to improve public convenience, they often cause chaos during rainy days due to water logging. We need to address this issue for the betterment of all and consider thoughtful solutions to mitigate water logging in subways.

Comments

Post a Comment

Popular posts from this blog

The Pitfalls of Imposed Language Learning: Advocating for Voluntary Multilingual Education

 Learning multiple languages is beneficial for any individual. Successful leaders often learn several languages, and many acclaimed writers have done the same, enabling them to produce innovative and translated works. In companies with a presence in multiple locations or international customers, learning their language creates a positive impact and helps build rapport. For instance, a Hindi-speaking leader who learns a few Tamil words to communicate with team members can foster a positive relationship. Similarly, when we meet a French person, attempting to speak even a single French word can help establish a connection. Learning languages out of interest allows us to appreciate the literature and culture of that language. Successful writers and filmmakers often do this. For example, many South Indian filmmakers watch Korean movies as a benchmark. Thus, learning multiple languages is always advantageous. Anyone with interest can learn a new language at any age. In India, children of...
Read more

Garbage and Advertisements: The True Path to Cleanliness

When I walk around parks and public places, I often see used water bottles, canned drink bottles, and snack wrappers scattered about. These items frequently end up on walkways, sometimes getting kicked around. I'm sure many of us have witnessed and experienced this. However, I've also seen people responsibly throwing their trash in bins, even separating degradable and non-degradable waste. This is something many of us have likely observed. I've noticed sanitary workers diligently picking up trash, sweeping the area, and disposing of waste. Unfortunately, many of these workers lack gloves, safety aprons, and proper tools. They work in public spaces as sanitary workers, but often don't have a place to sit and rest for their meals. Despite witnessing these efforts, I rarely see individuals picking up trash from walkways and disposing of it properly on normal days. Yet, I've observed groups of people coming together for clean-up events. They buy expensive gloves and saf...
Read more