Socio-Spatial Dynamics of Urban Residential Land Use in Agartala City, India: A GIS-Based Analysis of Housing Typology, Land Value Gradients, and Infrastructure Disparities

Cities are not random collections of buildings; they are living maps of how people live, work, and move. In the study of urban geography, researchers have long tried to understand how a city organizes itself. One classic idea suggests that a city grows in perfect rings, like ripples in a pond, with the most expensive and well-serviced areas in the center and poorer, less developed areas on the edges. Another theory proposes that cities grow in wedges along major roads, while a third suggests they develop around several distinct centers of activity rather than just one. These frameworks help us predict where people will live and how much their land is worth. But these models were often built on observations of Western cities, and it remains unclear if they hold true for the rapidly changing, mid-sized cities of India, where history, migration, and unique landscapes shape the urban fabric in unexpected ways. Understanding these patterns is crucial because where a person lives often determines their access to clean water, safe roads, and reliable waste collection, directly impacting their health and economic future.

In the capital city of Agartala, located in the northeastern state of Tripura, a researcher named Abhijit Santra set out to map these invisible boundaries. Agartala is a city of contrasts, built in a low-lying valley between a river and a canal, a geography that makes it prone to flooding. Over the last few decades, the city has exploded in size, growing nearly five times larger since 1991 due to waves of migration and administrative growth. To understand how this expansion has affected its residents, Santra conducted a massive survey, visiting nearly one thousand homes across the city's forty-nine administrative districts. He did not just look at the buildings; he asked about the materials they were made of, the income of the families living inside, and how well the neighborhood was served by essential utilities like piped water, paved roads, and garbage collection. By combining these human stories with detailed digital maps, the study reveals a city that is deeply divided, not just by wealth, but by the very ground it stands on.

The investigation uncovered that Agartala does not fit neatly into the old idea of a city growing in perfect rings. Instead, the city follows a pattern known as the Multiple Nuclei Model, meaning it has grown around several different hubs of activity rather than just one central point. While the city center, known as the Central Business District, remains the most expensive and prestigious area, other pockets of wealth have formed around government offices, large markets, and major highway intersections. The study found a clear and strong rule governing the value of land: as you move further away from the city center, the price of land drops significantly. This decline is not just a slight dip; it is a steep and consistent slide. A house located right in the commercial heart of the city commands a price more than three times higher than a similar plot on the distant outskirts. However, this rule has exceptions. Areas located along the main national highway, even if they are far from the center, hold higher value because the road provides easy access to the rest of the region, proving that transportation can sometimes override distance.

The quality of housing tells a similar story of separation. The researchers classified homes into four distinct types, ranging from sturdy, multi-story concrete buildings to dilapidated structures made of bamboo and tin. The strongest, most expensive concrete homes are clustered tightly around the city center, where the wealthy and the powerful live. As one moves outward, the housing quality shifts to semi-permanent structures, and finally, on the far edges of the city, the landscape is dominated by poor-quality and decaying dwellings. This is not a random distribution. The study confirmed with statistical certainty that the type of house a family lives in is directly linked to how far they are from the center. The inner city is a zone of reinforced concrete and modern amenities, while the periphery is a zone of temporary materials and severe disrepair. This spatial sorting means that the city's poorest residents are physically pushed to the margins, where the land is cheapest but the risks are highest.

Perhaps the most striking finding is how this physical separation translates into a stark inequality of daily life. The researchers created a score to measure how adequate the infrastructure was in different parts of the city, looking at nine different services. The results showed a dramatic drop-off as one moved from the center to the edge. In the inner city, nearly four out of five households have access to piped water, and the roads are mostly paved. In the peripheral zones, that number for piped water falls to less than two out of five, and paved roads become a rarity. The disparity is even more severe when it comes to garbage collection. In the city center, waste is collected with some regularity, but in the outermost neighborhoods, daily collection is virtually non-existent. In these peripheral areas, only a tiny fraction of homes receive garbage pickup every day, while the majority wait weeks or have no scheduled service at all. This lack of basic sanitation is particularly dangerous in Agartala because the city sits in a floodplain; when garbage clogs the drainage channels, the monsoon rains turn streets into rivers, damaging homes and spreading disease.

The study concludes that Agartala's urban structure is a complex mix of classic economic forces and local realities. While the distance from the center still dictates the price of land and the quality of housing, the city's unique history of migration and its challenging flood-prone topography have created a landscape that defies simple models. The city has grown around multiple centers of power and commerce, but it has also allowed its most vulnerable populations to settle on the lowest, most dangerous ground along the riverbanks. The research suggests that for the city to become sustainable, it cannot simply continue to expand outward. Instead, it needs to invest heavily in the peripheral zones, bringing water, roads, and waste management to the areas that currently lack them. It also suggests that building upward in the existing developed areas could help protect the fragile wetlands on the city's edge. By understanding exactly where the gaps are, city planners can begin to bridge the divide between the wealthy core and the struggling periphery, ensuring that the benefits of urban life are shared more equitably across the entire landscape.