Road Transport and National Highways

Understand India's road network and the major highways connecting the country.

General Knowledge with special reference to J&K UT › Weather, Climate, Crops and Means of Transport of India · 20 min read

In our previous chapter, we explored the important crops of Jammu and Kashmir, from the saffron of Pampore to the apples of Sopore. But growing a world-class crop is only half the battle. To turn that harvest into income, a farmer needs to move it from the orchard to the market before it spoils. This is where transport comes in.

India runs on its roads. While railways are the romanticised lifeline of the nation, it is the road network that provides the crucial "last-mile" connectivity. You cannot build a train station outside every farm or a port in every landlocked village, but you can build a road. Today, India boasts the second-largest road network in the world, spanning over 63 lakh kilometres. Roads carry roughly 85% of the country's passenger traffic and about 70% of its freight.

In this chapter, we are going to break down how this massive web of asphalt and concrete is organized. We will look at how roads are classified, who builds them, the logic behind how highways are numbered, and the mega-projects that tie the subcontinent together.

The Historical Foundation: The Grand Trunk Road

Before we look at modern classifications, it is worth understanding that India has a very old tradition of highway building. The most famous historical highway is the Grand Trunk Road (often called the GT Road).

Built and consolidated in the 16th century by the ruler Sher Shah Suri, it was originally known as Sadak-e-Azam (The Great Road). It stretched all the way from Chittagong (in modern-day Bangladesh) through Howrah, Delhi, and Amritsar, up to Kabul (in modern-day Afghanistan). For centuries, this was the primary trade route of the Indian subcontinent.

Today, the Indian stretch of the historical GT Road is divided into two major National Highways:

  • NH 1: Running from Delhi to Amritsar (and on to the border).
  • NH 2: Running from Delhi to Kolkata.

(Note: These are the old highway numbers, which we will explain shortly when we discuss the new numbering system).

The Nagpur Plan: How We Classify Roads

When India was approaching independence, the government realized that the country's road network was highly fragmented. In 1943, a conference of chief engineers was held in Nagpur to create a long-term road development plan.

The "Nagpur Plan" was a landmark moment because it officially classified India's roads into four distinct categories based on their function and the authority responsible for them. This classification is still the foundation of how we organize roads today.

Road Classification Hierarchy

  1. 1National Highways (The primary arteries connecting states)
  2. 2State Highways (The secondary arteries within a state)
  3. 3District Roads (Connecting towns and markets within a district)
  4. 4Rural Roads (The capillaries connecting villages to the main grid)

Let's look at each of these, starting from the top of the hierarchy.

National Highways (NH): The Arteries of the Nation

National Highways are the premier roads of the country. They are designed to connect the capital cities of states, major ports, large industrial centres, and strategic border areas.

Here is the most fascinating statistic about National Highways: They make up only about 2% of India's total road network length, but they carry over 40% of the country's total road traffic. They are the heavy-lifters of the Indian economy.

Because of their national importance, these roads are not left to the individual states to manage. They are the direct responsibility of the Central Government.

The NHAI and MoRTH

The overarching ministry responsible for these roads is the Ministry of Road Transport and Highways (MoRTH). However, the actual on-ground work of building, upgrading, and maintaining the major highways is handled by a specialized agency.

The NHAI operates like a massive project management company. It surveys the land, designs the highway, and then usually awards the construction contract to private engineering firms through models like Public-Private Partnerships (PPP). To recover the massive costs of building these world-class roads, the NHAI collects tolls (now mostly automated via the FASTag system).

While the NHAI handles the biggest, most lucrative highway projects, some National Highways (especially in difficult terrains or less trafficked areas) are maintained by the Central Public Works Department (CPWD) or the respective State Public Works Departments (PWDs) acting on behalf of the Central Government.

The Highway Numbering System: Cracking the Code

If you have ever driven on an Indian highway, you have seen the yellow and white milestones with numbers like NH 44, NH 27, or NH 48. For a long time, these numbers were assigned randomly. NH 7 was the longest, NH 8 went to Mumbai, and there was no geographic logic to it.

In 2010, the Government of India completely overhauled the numbering system to make it logical and grid-based, much like the interstate highway system in the United States. Understanding this grid is highly rewarding for exams.

Here are the golden rules of the new National Highway numbering system:

1. The Odd and Even Rule (Direction)

  • North-South Highways: Any highway that runs vertically (North to South) is given an EVEN number.
  • East-West Highways: Any highway that runs horizontally (East to West) is given an ODD number.

2. The Increasing Order (Location)

  • Even numbers (North-South): These numbers increase from East to West. So, a North-South highway in the extreme East of India (like Assam) will have a low even number (like NH 2). As you move west towards Gujarat, the even numbers get higher (like NH 68).
  • Odd numbers (East-West): These numbers increase from North to South. So, an East-West highway high up in the Himalayas will have a low odd number (like NH 1). As you move south towards Kerala and Tamil Nadu, the odd numbers get higher (like NH 85).

3. Three-Digit Numbers (Branches) Major highways have one or two digits (e.g., NH 44). If you see a three-digit highway, it is a secondary branch or a spur route connecting to a main highway. The rule is simple: look at the last two digits to know which main highway it branches from.

  • NH 144, NH 244, and NH 344 are all branches that connect to the main NH 44.
  • If a branch has a small offshoot, an alphabet is added (e.g., NH 144A).

The Extremes: Longest and Shortest National Highways

Because of the 2010 renumbering, the answers to "longest and shortest highways" changed, which often trips up students relying on old textbooks.

The Longest: National Highway 44 (NH 44)

NH 44 is the undisputed king of Indian roads. It is the longest National Highway in India, stretching for approximately 3,745 kilometres.

  • Origin: Srinagar in Jammu & Kashmir.
  • Terminus: Kanyakumari in Tamil Nadu (the southernmost tip of mainland India).
  • Route: It passes through 11 states, connecting major cities like Jammu, Pathankot, Delhi, Agra, Gwalior, Nagpur, Hyderabad, Bengaluru, and Madurai.

To create NH 44, the government didn't build a single new road from scratch; instead, they merged seven existing, older national highways into one continuous route. (For those who studied older textbooks, the old NH 7, which ran from Varanasi to Kanyakumari, was merged into this new NH 44).

The Second Longest: National Highway 27 (NH 27)

NH 27 is the second-longest highway, stretching over 3,500 kilometres. Because it is an odd number, we know it runs East-West. It connects Porbandar in Gujarat to Silchar in Assam, crossing the entire width of the country.

The Shortest National Highways

Identifying the absolute shortest highway can be tricky because the network is constantly being updated with new, tiny spur roads connecting ports or borders. However, for exam purposes, you should be aware of these notable micro-highways:

  • NH 327B: Currently recognized by many sources as the shortest, this is a mere 1.2 kilometre stretch in West Bengal connecting Panitanki to the Mechi Bridge on the India-Nepal border.
  • NH 548 and NH 118: Both are roughly 5 kilometres long. NH 548 is in Maharashtra, and NH 118 is in Jharkhand.
  • NH 966B (formerly NH 47A): Often cited in older exam papers as the shortest, this is a 6-kilometre stretch in Kerala connecting Kundannoor to Willingdon Island (a major port in Kochi).

Mega Projects: Tying the Nation Together

To upgrade India's infrastructure, the government launched the National Highways Development Project (NHDP) in the late 1990s. This gave birth to two of the most ambitious road projects in Indian history.

1. The Golden Quadrilateral (GQ)

Launched in 1999 by then-Prime Minister Atal Bihari Vajpayee, the Golden Quadrilateral is a massive highway network that connects India's four top metropolitan cities, forming a rough quadrilateral on the map.

  • The Four Corners: Delhi (North), Kolkata (East), Chennai (South), and Mumbai (West).
  • Total Length: 5,846 kilometres.
  • Significance: It is the largest highway project in India and the fifth longest in the world. It transformed freight movement between India's major economic hubs, turning multi-day truck journeys into predictable, faster transit.

2. The North-South and East-West Corridors

While the Golden Quadrilateral connects the metros, the NS-EW Corridors were designed to connect the extreme ends of the country.

  • North-South Corridor: Connects Srinagar (J&K) to Kanyakumari (Tamil Nadu). This is essentially the route of NH 44.
  • East-West Corridor: Connects Porbandar (Gujarat) to Silchar (Assam). This is essentially the route of NH 27.

Bharatmala Pariyojana

It is important to note that the old NHDP has now been subsumed into a newer, even larger umbrella program called the Bharatmala Pariyojana. Launched in 2017, Bharatmala focuses on optimizing the efficiency of freight and passenger movement by bridging critical infrastructure gaps. It focuses on building Economic Corridors, Inter-corridors, Feeder Routes, and Coastal/Port connectivity roads.

Expressways vs. National Highways

Before we move down the hierarchy to state roads, we must clarify a modern distinction: Expressways are not the same as National Highways.

A National Highway is a major road, but it often passes through towns, has traffic lights, and allows all types of vehicles (including tractors and two-wheelers). An Expressway is a highly advanced, access-controlled facility.

  • Access-Controlled: You can only enter or exit an expressway at specific interchanges. There are no crossroads, no traffic lights, and no slow-moving local traffic.
  • Speed: They are designed for high speeds (often 120 km/h for cars).
  • Examples: The Agra-Lucknow Expressway, the Yamuna Expressway, and the under-construction Delhi-Mumbai Expressway (which will be India's longest expressway).

Expressways represent the future of high-speed road transport in India, sitting one tier above standard National Highways in terms of quality and speed.

State Highways, District Roads, and Rural Roads

Moving down from the National Highways, we have the rest of the network that handles regional and local traffic.

State Highways (SH)

These roads connect the state capital with district headquarters and other important cities within the state. They also link up with the National Highways.

  • Responsibility: The State Government is responsible for them, and they are constructed and maintained by the State Public Works Department (PWD).
  • Identification: Their milestones usually have a green and white colour scheme.

District Roads

These roads connect the district headquarters with major towns, tehsils, and large villages within the district. They are the crucial link between the rural hinterland and the urban markets.

  • Responsibility: They are maintained by the Zila Parishads (District Councils) with funds provided by the state government.

Rural Roads (Village Roads)

This is the bottom of the pyramid, but it is the widest part. Rural roads make up over 70% of India's total road network. They connect small villages to each other and to the nearest district roads.

For decades, rural roads were neglected, often remaining unpaved dirt tracks that washed away during the monsoon, cutting off entire villages from hospitals and markets. This changed dramatically with the launch of a specific scheme.

Border Roads Organisation (BRO): The Strategic Builders

There is one final, highly specialized category of roads in India: Border Roads.

India shares long, difficult, and often contested borders with its neighbours, particularly in the high Himalayas of Jammu & Kashmir, Ladakh, Himachal Pradesh, Uttarakhand, Sikkim, and Arunachal Pradesh. Building roads in these terrains—where temperatures drop to -40°C and avalanches are common—is beyond the capacity of standard civil contractors.

This task is entrusted to the Border Roads Organisation (BRO).

  • Formation: Established in 1960.
  • Role: To develop and maintain road networks in India's border areas and friendly neighbouring countries. The BRO is a unique organization that functions under the Ministry of Defence, and its officers are drawn from the Indian Army's Corps of Engineers.

Project Beacon

For students in Jammu & Kashmir, the BRO is a familiar name, primarily through Project Beacon. Established in 1960, Project Beacon is the oldest project of the BRO. It is responsible for the development and maintenance of the road infrastructure in the Kashmir region, including the critical maintenance of the Srinagar-Jammu National Highway (NH 44) and the roads leading to strategic border areas like Uri and Kupwara. Keeping these mountain passes open during heavy winter snowfall is a monumental task executed by the personnel of Project Beacon.

Other famous BRO projects include Project Himank in Ladakh (which built some of the world's highest motorable roads) and the construction of the engineering marvel, the Atal Tunnel in Himachal Pradesh.

Quick Revision

  • Road Network Size: India has the 2nd largest road network in the world (~63 lakh km).
  • Nagpur Plan (1943): Classified roads into National Highways, State Highways, District Roads, and Rural Roads.
  • NHAI: Formed in 1988, operational in 1995. Manages National Highways under MoRTH.
  • Traffic Share: National Highways are only ~2% of road length but carry ~40% of traffic.
  • Numbering System: North-South highways are EVEN numbers; East-West highways are ODD numbers.
  • Longest NH: NH 44 (Srinagar to Kanyakumari, ~3,745 km).
  • Shortest NH: NH 327B (1.2 km, West Bengal) / NH 548 / NH 118.
  • Golden Quadrilateral: Connects Delhi, Mumbai, Chennai, Kolkata (5,846 km).
  • Corridor Intersection: The North-South and East-West Corridors intersect at Jhansi.
  • Rural Roads: Make up over 70% of the network, heavily supported by the PMGSY (launched in 2000).
  • BRO: Formed in 1960 under the Ministry of Defence. Project Beacon maintains critical roads in J&K.

Related notes