Urban Sprawl Drains Iran’s Water, Energy Systems

Ali Rahmati, a researcher at Pars University of Architecture and Art, has shed light on a pressing urban challenge in the West Golestan neighborhood of Iran. His study, published in *Design and Planning in Architecture and Urbanism*, examines the phenomenon of urban sprawl—a pattern of unchecked horizontal growth that has reshaped neighborhoods worldwide since the mid-20th century. Rahmati’s findings reveal not just spatial expansion, but a cascade of economic and environmental consequences that could reshape how cities plan for energy and infrastructure.

Urban sprawl, often driven by land speculation and weak urban policies, fragments neighborhoods, stretches infrastructure thin, and inflates costs. “The spread of low-density development increases the distance between homes, jobs, and services,” Rahmati notes. “This means longer commutes, higher energy demand, and greater strain on water, drainage, and energy networks.” His research uses advanced spatial metrics—including the Van der Laar and Gini coefficients—to quantify how scattered development degrades urban efficiency.

The commercial implications are significant, especially for energy providers and municipal planners. As neighborhoods expand outward without coordinated infrastructure, utilities face ballooning operational costs. Water and drainage systems designed for compact growth become overloaded, leading to inefficiencies and higher maintenance. Energy grids stretch thinner, increasing transmission losses and vulnerability to blackouts. “When cities grow horizontally without smart planning, every kilowatt-hour and every liter of water costs more to deliver,” Rahmati observes.

His study suggests that sustainable urbanism—compact, mixed-use, and transit-oriented development—could reverse these trends. By prioritizing density and connectivity, cities can reduce energy demand, cut infrastructure costs, and protect green spaces. The findings come at a time when global energy markets are under pressure to decarbonize while meeting rising urban demand.

Rahmani’s work is more than a spatial analysis—it’s a call for policy reform. Cities that ignore sprawl risk not only environmental degradation but also higher long-term costs for utilities and taxpayers. As energy transition accelerates, the way we grow our cities may determine whether we meet climate goals—or fall further behind.

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