Highway development programmes: from the Golden Quadrilateral to Bharatmala

Detail

1. National Highways Development Project (NHDP)

• NHDP (National Highways Development Project) was India's first big plan to rebuild the busiest National Highways in phases. A phase is one stage of work, done one after another.
• Executing agency: NHAI (National Highways Authority of India). It is a central body that builds and maintains National Highways.
• Started: 1998-99.

• Aim: widen the main highways to 4 or 6 lanes. This was to cut travel time, distance and transport cost between big cities and ports.

• Ended: In 2017, NHDP was merged into (subsumed by) Bharatmala Pariyojana. About 10,000 km of NHDP work was still left (residual NHDP). It was added to Bharatmala Phase I [4].

2. Golden Quadrilateral (GQ): NHDP Phase I

• Golden Quadrilateral: a 4-sided ring of 4- and 6-lane highways, about 5,846 km long. It joins the four biggest metros:

• Delhi (north) → Mumbai (west) → Chennai (south-east) → Kolkata (east) → back to Delhi.

• Timeline: launched 1999, completed 2012.

• Result: faster, shorter and cheaper road trips between the metros. In NCERT Class 10 it is called the "Golden Quadrilateral Super Highways".
• Why a "quadrilateral": the four metros sit roughly at the four corners of the country. A ring through them passes through most of the big industrial belts:
• NCR in the north
• the Gujarat–Maharashtra coast in the west
• the Tamil Nadu–Karnataka belt in the south
• the Chota Nagpur–Hugli belt in the east

3. North-South and East-West corridors (NHDP Phase II)

• Corridor: a long, high-capacity route that carries traffic across a large region.

Corridor	From → To	Length	Extreme points
North-South (NS)	Srinagar (Jammu & Kashmir) → Kanniyakumari (Tamil Nadu), with the Kochi–Salem spur	4,076 km	Northern end in the Kashmir Valley; southern end at India's mainland tip (about 8°N)
East-West (EW)	Silchar (Barak Valley, Assam) → Porbandar (Saurashtra coast, Gujarat)	3,640 km	Eastern end in the North-East; western end on the Arabian Sea

• Spur: a short branch road off a main corridor. The Kochi–Salem spur joins the Kerala port of Kochi to the NS corridor at Salem in Tamil Nadu.
• Crossing point: NS and EW meet at Jhansi. Jhansi is in the Bundelkhand region of Uttar Pradesh, at about 25.4°N, 78.6°E. It is near the geographical centre of India.

4. Why some cities became highway nodes (NCERT map question)

• Node: a point on a network where two or more routes meet. Goods and people change routes there.
• How a node grows:
• Two or more corridors (or a corridor and a GQ arm) pass through a city.
• Traffic from many directions has to pass through it.

• Warehouses, truck terminals, markets and industries come up. The city grows as a transport and trade hub.

• Cities NCERT names:

• Delhi: GQ corner and on the NS corridor.
• Kanpur: on the GQ's Delhi–Kolkata arm and on the EW corridor.
• Bengaluru: on the GQ's Chennai–Mumbai arm and on the NS corridor.
• Hyderabad: on the NS corridor and linked to GQ cities.

• Patna: lies where the EW corridor and the GQ's eastern routes pass through the Ganga plain of Bihar.

• Exam point: a node comes from network position (where routes meet), not just city size.

5. Bharatmala Pariyojana (2017)

• Bharatmala Pariyojana: the central scheme of the Ministry of Road Transport and Highways (MoRTH) that replaced NHDP in 2017. It plans highways around freight corridors, meaning the routes goods actually travel on. Earlier plans worked road by road.
• Economic corridor: a highway linking production and consumption centres, such as industrial clusters, mines, ports and big markets.
• Overall vision: about 26,000 km of economic corridors. Together with the GQ and the NS-EW corridors, they are meant to carry most of India's road freight.

Phase I approval: The Cabinet Committee on Economic Affairs (CCEA) approved it in October 2017 [4]:

• 24,800 km of new Bharatmala roads plus 10,000 km of residual NHDP, giving 34,800 km in total [4].
• Outlay: ₹5,35,000 crore [4].

Phase I components (2017 approval) [4]:

Component	What it means	Length
Economic corridors	Main freight routes between economic centres	~9,000 km
Inter-corridor and feeder roads	Short roads that link corridors to each other, and towns or factories to a corridor	~6,000 km
National corridor efficiency improvement	Removing choke points on the GQ and NS-EW, such as ring roads (roads that circle a city), bypasses (roads that go around a town) and elevated corridors (roads on pillars above crowded areas)	~5,000 km
Border and international connectivity roads	Roads to border areas and to neighbouring countries	~2,000 km
Coastal and port connectivity roads	Roads linking ports and coastal belts to the hinterland (the inland area a port serves)	~2,000 km
Expressways	Greenfield expressways: new, access-controlled roads built on fresh land, not by widening an old road	~800 km

Phase I progress:

Date	Awarded	Built
December 2023	~26,418 km (~76% of 34,800 km)	~15,549 km [5]
31.10.2024	26,425 km	18,714 km [2]
28.02.2025	26,425 km	19,826 km [3]

• State examples (built by February 2025): Andhra Pradesh 1,070 km, Bihar 672 km, Assam 381 km, Delhi 183 km [3].

6. Beyond NCERT: expressways and sea bridges

Delhi-Mumbai Expressway (DME)

• India's longest expressway: about 1,386 km, including spurs. It is built in 53 packages [6][7].
• States: Delhi, Haryana, Rajasthan, Madhya Pradesh, Gujarat, Maharashtra.
• Benefits [7]:
• Delhi–Mumbai road distance falls by 12%, from 1,424 km to 1,242 km.

• Travel time falls by 50%, from about 24 hours to 12 hours.

• Progress (mid-2024) [6]:

• 26 packages completed, 82% physical progress, 1,136 km built.

• Revised completion date: October 2025.

• First section opened: February 2023, the Delhi–Dausa–Lalsot stretch in Rajasthan [7].

Other expressways

• Purvanchal Expressway: eastern Uttar Pradesh.
• Samruddhi Mahamarg: the Mumbai–Nagpur expressway in Maharashtra.
• Dwarka Expressway: Delhi–Gurugram, NCR.

Atal Setu (Mumbai Trans Harbour Link, MTHL)

• Full name: Atal Bihari Vajpayee Sewri–Nhava Sheva Atal Setu [8].
• Route: Sewri in Mumbai island city → Nhava Sheva in Navi Mumbai, across Mumbai harbour (Thane creek mouth).
• Size: about 21.8 km long, 6 lanes. About 16.5 km is over the sea and about 5.5 km is on land [8].
• Record: India's longest bridge and longest sea bridge [8].
• Key dates [8]:
• Foundation stone laid in December 2016.

• Inaugurated on 12 January 2024.

• Cost: about ₹17,840 crore [8].

• Use: faster links to Mumbai and Navi Mumbai airports, and shorter trips from Mumbai to Pune, Goa and South India [8].
• Scope note: FASTag and toll collection belong to the infrastructure topic, not this section.

Prelims Hooks

• GQ links Delhi–Mumbai–Chennai–Kolkata. It is 5,846 km long, launched 1999, completed 2012, and was NHDP Phase I.
• NS corridor: Srinagar → Kanniyakumari, 4,076 km, with the Kochi–Salem spur. EW corridor: Silchar (Assam) → Porbandar (Gujarat), 3,640 km.
• NS and EW cross at Jhansi (Uttar Pradesh). Trap: not Nagpur, which is often wrongly given as the crossing.
• Bharatmala Phase I (CCEA, October 2017) = 24,800 km new + 10,000 km residual NHDP = 34,800 km, with an outlay of ₹5.35 lakh crore [4].
• Largest Phase I component: economic corridors (~9,000 km). Smallest: expressways (~800 km) [4].
• NHDP was carried out by NHAI and was subsumed into Bharatmala in 2017.
• Delhi-Mumbai Expressway (~1,386 km) is India's longest expressway. It passes through Haryana, Rajasthan, Madhya Pradesh, Gujarat and Maharashtra [7].
• Atal Setu (Sewri–Nhava Sheva, 21.8 km, opened 12 January 2024) is India's longest sea bridge. Trap: the Bandra–Worli Sea Link is shorter [8].

Mains Points

• From roads to corridors (GS-III, infrastructure): NHDP widened single highways. Bharatmala plans by freight flow, with economic corridors, feeder roads and port and border links. This targets India's high logistics cost and adds the "last mile" (the final short link to factories, ports and towns) that the GQ and NS-EW lacked.
• Regional development pattern (GS-I): corridor crossings such as Jhansi, Kanpur, Bengaluru and Delhi grow into nodes with warehouses and industries. Remote ends like Silchar (North-East) and Porbandar (Saurashtra) gain market access. Without feeder roads, though, the benefits stay along the corridor and do not spread inland.
• Implementation gaps: Phase I approved 34,800 km in 2017. By February 2025, only 19,826 km was built [3]. The Delhi-Mumbai Expressway's deadline was revised to October 2025 [6]. Common reasons:
• delays in land acquisition
• forest and environment clearances

• rising costs

• Integration: expressways and port links such as Atal Setu and Bharatmala's coastal and port roads work best when linked with Sagarmala (port-led development) and PM Gati Shakti (integrated multi-modal planning, 2021). This cuts the need to unload and reload goods when they switch between road, rail and sea.