National Highway 16 is a major national highway in India that stretches from Dankuni, near Kolkata in West Bengal, down the eastern coast to Chennai in Tamil Nadu. This vital transportation artery connects several important cities and industrial hubs along the Bay of Bengal, playing a crucial role in trade, commerce, and passenger movement. The highway passes through the states of West Bengal, Odisha, Andhra Pradesh, and Tamil Nadu, linking Kolkata, Bhubaneswar, Visakhapatnam, Vijayawada, and Chennai.

NH16 facilitates the movement of goods and people across these states, boosting economic activity and providing connectivity to numerous smaller towns and villages along its route. It serves as a lifeline for the transportation of agricultural products, manufactured goods, and raw materials, contributing significantly to the regional economies. The highway also supports tourism by enabling easier access to various cultural and natural attractions along the eastern coastline. Improvements and expansions to NH16 are continuously undertaken to enhance its efficiency and accommodate increasing traffic volumes, further solidifying its importance in India's transportation network.

National Highway 16 is a major roadway in India that stretches from Dankuni in Kolkata, West Bengal, to Chennai in Tamil Nadu. Covering approximately 1,500 kilometers, this highway traverses several key states, including Odisha and Andhra Pradesh. NH 16 is part of the larger East Coast Economic Corridor, facilitating significant trade and transportation along the eastern coast of India. The route serves as a vital link for commercial traffic, connecting ports, industrial regions, and urban centers, thus playing a crucial role in the economic development of the regions it traverses.

As travelers navigate NH 16, they encounter diverse landscapes, shifting from urban environments in Kolkata to rural areas and coastal regions before reaching Chennai. The highway is well-maintained in many sections, featuring a mix of four-lane and six-lane expansions to accommodate the heavy vehicle movement. Key cities along the route include Bhubaneswar, Visakhapatnam, and Vijayawada, each offering unique cultural and economic contributions. Overall, NH 16 is essential for promoting connectivity and supporting the movement of goods and people across a significant portion of southeastern India.

NH 16, Wikipedia

• West Bengal : Generally good to fair. Expect some congestion near Kolkata and other major towns. Road widening and construction are ongoing in certain stretches, leading to diversions and slower traffic. Surface can be uneven in places, especially near rural areas. Toll plazas are frequent, so factor in potential delays.
• Odisha : Mostly good, particularly the four-lane sections. Expect smoother driving conditions compared to West Bengal. However, be cautious of heavy truck traffic and potential for sudden slowdowns. Watch out for local traffic entering and exiting the highway, especially in smaller towns. Some sections may have potholes after the monsoon season.
• Visakhapatnam to Chennai Andhra Pradesh : Mostly good, with well-maintained sections. Some stretches may have moderate traffic, especially around urban areas like Vijayawada and Nellore. Be aware of occasional diversions due to ongoing maintenance. Pay attention to local traffic and pedestrians, particularly in smaller towns and villages.
• Tamil Nadu (Border to Chennai): The road conditions generally remain good with four-lane and six-lane highways depending on the section, allowing for smoother and faster travel compared to other sections. Be mindful of speed limits and follow traffic rules diligently. Construction is undergoing near Chennai region resulting in diversions and potential delays.