How Smart City Initiatives are Changing Infrastructure in Dhaka and Chittagong

The twin engines of Bangladesh’s economic growth—the capital city of Dhaka and the premier port city of Chittagong—have long faced a shared, grueling crisis: hyper-urbanization. For decades, the sheer speed at which millions of people migrated to these commercial hubs completely overwhelmed the physical infrastructure. Urban life became defined by legendary traffic gridlocks that paralyzed daily productivity, heavily congested roadways, and unmanaged overhead cable webs that created constant safety hazards. However, the urban landscape of Bangladesh is currently undergoing the most radical structural transformation since the nation’s independence. Driven by a comprehensive "Smart City" master plan, massive, multi-billion-dollar megaprojects are rapidly transitioning from blueprints into concrete realities. From the historic expansion of the Mass Rapid Transit (MRT) networks to high-speed elevated expressways and the total modernization of utility grids, here is an update on how these massive infrastructure overhauls are redefining daily life in Dhaka and Chittagong.  

Dhaka's Transit Revolution: The Metro Rail Escalates

The absolute crown jewel of Dhaka’s infrastructure modernization is the Mass Rapid Transit (MRT) network, commonly known as the Metro Rail. When the initial phase of MRT Line-6 opened, it completely changed the psychological geography of the capital, transforming an agonizing two-hour commute from Uttara to Motijheel into a smooth, air-conditioned 30-minute breeze. But the system was never meant to stop there. Construction is moving at an aggressive pace on the vital extension of MRT Line-6 from Motijheel to the historic transport hub of Kamalapur. This final 1.16-kilometer link is on track to become fully operational, seamlessly integrating the suburban metro rail system directly with the country's central railway network. Concurrently, heavy construction is visibly reshaping the city along the routes of MRT Line-1 and MRT Line-5 (Northern Route). MRT Line-1 is particularly historic because it introduces the country’s very first mass-scale underground subway system. This line will split into two distinct routes: an 18.8-kilometer underground line connecting Hazrat Shahjalal International Airport directly to Kamalapur, and an 11.8-kilometer elevated route stretching out to the booming suburban expansion of Purbachal New Town. By utilizing state-of-the-art Tunnel Boring Machines (TBMs) that excavate deep beneath the city’s surface without disrupting the chaotic street traffic above, urban engineers are building a subterranean transport web destined to move millions of commuters daily by 2028 to 2030.  

Dhaka Transit Architecture

MRT Line-6 Extension

• Motijheel to Kamalapur link
• Direct central rail integration

MRT Line-1 Subway

• Airport to Kamalapur route
• 18.8 km underground network

 

Elevated Expressways and Chittagong’s Maritime Modernization

While the metro rail handles commuter crowds on the rails, the Dhaka Elevated Expressway is systematically rewriting how vehicular logistics move through the heart of the capital. Large segments of this 19.73-kilometer mega-expressway are fully functional, allowing heavy commercial trucks, cargo vans, and private vehicles entering from the northern industrial belts of Gazipur to completely bypass the gridlocked intersections of downtown Dhaka. Instead, traffic glides seamlessly above the city, dropping commuters directly into major commercial zones like Tejgaon, Mogbazar, and the Dhaka-Chittagong highway network within minutes. Meanwhile, 250 kilometers to the southeast, Chittagong is executing its own massive smart infrastructure master plan. The commercial gateway of the country has officially celebrated the total completion of the Chittagong Elevated Expressway, a massive 18-kilometer elevated highway that connects the city center at Lalkhan Bazar directly to the Shah Amanat International Airport. This project works in tandem with the historic Karnaphuli Tunnel (the Bangabandhu Sheikh Mujibur Rahman Tunnel)—the first underwater road tunnel in the South Asian region. By cutting directly beneath the bed of the Karnaphuli River, this underwater marvel links the bustling main city of Chittagong directly to the undeveloped Anwara upazila, effectively actualizing the government's long-held "One City, Two Towns" model. This structural linkage allows port traffic to bypass congested urban streets entirely, drastically accelerating the movement of import and export cargo from the garment factories to the maritime shipping lanes.  

Building the Invisible Smart City: Subsurface Utilities

When everyday citizens think of a "Smart City," they naturally picture towering elevated trains and sleek highway overpasses. However, urban planners know that the true intelligence of a modern metropolis lies within its invisible infrastructure. For decades, both Dhaka and Chittagong have suffered from a highly disorganized system of overhead telecommunication and electrical cables, which hang dangerously over streets and régulièrement snap during heavy tropical storms. To address this, major municipalities have launched an extensive, long-term project to migrate all overhead electrical and fiber-optic networks completely underground. This multi-phase initiative includes setting up over 40 highly advanced digital substations across Dhaka alone and systematically burying thousands of kilometers of utility cables into secure subsurface concrete trenches. Furthermore, these new urban lines are being paired with Smart Pre-payment Utility Meters for water, gas, and electricity. Controlled by centralized software networks, these smart grids allow utility companies to track consumption patterns in real time, rapidly detect underground pipe leaks or electrical faults, and eliminate utility systemic losses. For the citizen, it means an end to arbitrary, estimated utility bills and a massive reduction in localized power outages, proving that the smart city initiatives are radically improving the baseline quality of urban life.