1.1. Wind Tunnel Effects in Row House Planning

And also, you know, don’t have too many offsets you know here, this is like too many, so symmetrical but still it’s too many offsets in it but then either try to make more of a defined shape because that is where you can even have a diagonal bracings, you can have some kind of support system so, it will; it is at least bound to a; this plan should be square or rectangular, if it is rectangular then you need to have a kind of intermediate support systems into it.

In building design, especially for structures like row houses, the shape and number of offsets (or irregularities) in the building's outline can significantly affect its stability. A shape that is defined and regular—like square or rectangular—offers better support and reduces vulnerability to structural damage. This is because a defined shape allows for effective diagonal bracing, which distributes forces and adds to the strength of the building.

Imagine a book stacked on a table. A square book is sturdy and won't fall over easily, but a book with an irregular shape, like a triangle, can tip over because it doesn't have stable edges. Similarly, buildings with simple, regular shapes can stand stronger against wind and other pressures.

Now, asymmetric buildings with empty pockets are more vulnerable to damage because don’t leave these empty pockets, we tried to fill that and that is where these are more stable you know, the symmetric buildings are more stable.

Asymmetric buildings, which are buildings that are not evenly proportioned or shaped, can have weak points or 'empty pockets' where there is less structural support. These weaknesses make them more susceptible to damage during high wind events or other pressures. In contrast, symmetric buildings—those that are evenly designed—tend to be more stable and less likely to suffer from these vulnerabilities. It’s essential to avoid designs that leave large unsupported spaces.

Think about how a seesaw works. If one side is heavier (like an asymmetric building), it can easily tip over. But if both sides are balanced (like a symmetric building), it remains stable and functions well. Ensuring buildings are symmetric helps them resist tipping or collapsing under pressure.

the row house planning also creates wind tunnel effects because the moment your house is one step to another, next to the shore and then it channels the wind and that is where it can damage the edges of the walls or the corners.

Row houses can create what are known as 'wind tunnel effects.' When houses are built closely next to each other, especially near coastal areas, the design can channel wind through narrow spaces between homes. This effect increases wind speed and can lead to damage at the edges of walls or corners, which are more vulnerable to high wind pressure. To minimize this risk, careful planning and orientation of row houses are essential.

Visualize trying to blow air through a narrow tube; the air speeds up as it passes through. Similarly, when wind blows between closely-packed row houses, it can accelerate and might cause damage to those houses, just like the air moves faster through the tube.

So, that is where you can even you know, now even the zigzag planning avoid wind tunnel effect right, so how actually, you can actually see about, how you can actually, give a little bit of vastness and then reduce it so, the zigzag pattern as well can have some control, it depends on how you are actually orienting it and similarly, the long phase of the building facing the wind direction.

Zigzag patterns in row house construction can help mitigate wind tunnel effects. By creating a less linear arrangement, the design encourages wind to flow around the structures rather than through narrow passages. This reduces the wind speed and pressure acting on the walls, which lowers the risk of damage. The orientation of these buildings, particularly where the longer facades face the wind, also plays a pivotal role in how well they can withstand wind forces.

Think about how trees on a windy day can bend and sway. When they are spaced apart irregularly, the wind can filter through them easily. But when they are planted in a straight line, the wind swirls more forcefully between them. Zigzag planning is like spreading out trees, helping them – and buildings – better cope with strong winds.

In fact, if you ever visit in the coastal villages of Tamil Nadu and the coastal areas; most of the times your short phase is of the building is facing the wind direction and whereas, in horizontal phase because that is where they have less number of openings and either that, if they are facing that side and they will have less number of openings and otherwise, if they mostly they orient so, the whole building pattern is like you have the seashore and you have these.

In coastal regions like Tamil Nadu, buildings are strategically oriented so that the shorter sides face the prevailing wind direction. This orientation is a smart design choice because it minimizes the number of openings exposed to strong winds, decreasing potential damage. By allowing the longer side to be away from the wind, buildings can reduce wind impact on their structure.

Consider a person standing with their back to the wind. If they turn sideways to face the wind, they feel its full force. However, if they stand with their back to it (like the short side of a building), they can avoid most wind pressure. It’s the same principle for coastal buildings that aim to protect their integrity by orienting properly against the wind.

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