The smallest national highway in Rajasthan is NH925, which connects Udaipur with Rajasthan and passes through the districts of Udaipur and Rajsamand.
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Australia`s Highway 1 is the longest national highway in the world at over 14,500 km (9,000 mi).
NH1
The longest national highway in India is the National Highway 44, which runs from Srinagar in Jammu & Kashmir to Kanyakumari in Tamil Nadu. It covers a distance of about 3,745 kilometers.
The longest highway in India is NH-7. This highway is 4,572 kilometers or 2,841 miles long. The shortest highway is NH-47A at 3.7 miles long.
NH 15 in terms of length (350km)
The longest road in India is the National Highway 7.
The longest international highway in the world is the Pan American highway. It connects many countries in the Americas and is almost 25,000km long. The longest national highway (point to point) is the Trans- Canada Highway, which is 7,821km long. This highway runs east-west across southern Ontario. It starts in Newfoundland on the east coast and ends in British Columbia on the west coast. The longest national highway (circuit) is Australia's Highway 1, which is over 20,000 km long. This highway runs almost the entire way around the continents coastline connecting most of the major cities.
The Highway 1 in Australia is considered the longest national highway in the world that is entirely within one country, stretching over 14,500 kilometers. It runs along the eastern and southern coastlines of the country, connecting major cities and landmarks.