GS Paper: GS3

Europe’s Proba-3 Mission to arrive in India

Europe's Proba-3 Mission to arrive in India

Why in the News?

India is set to launch the European Space Agency’s (ESA) PROBA-3 Mission in December from the Sriharikota spaceport.
- The mission will use ISRO’s PSLV rocket to place two satellites in orbit, designed to study the Sun’s corona, or outer atmosphere.

About Proba-3 Mission:

	Details
Mission Name	PROBA-3 (Project for On-Board Autonomy-3)
Objective	Study the Sun’s corona by creating an artificial eclipse with precision formation flying of two satellites
Launch Date and Location	December 4, 2024, from Sriharikota spaceport, India, via ISRO’s PSLV-XL rocket
Orbit	Highly elliptical orbit, ranging from 600 km to 60,000 km, with a 19.7-hour orbital period
Satellites	Two satellites: Coronagraph spacecraft (340 kg) and Occulter spacecraft (200 kg)
Alignment Precision	Millimeter-level alignment to block the Sun’s light and allow continuous corona observation
Key Scientific Goals	Observe solar phenomena, such as solar flares and coronal mass ejections, to improve space weather forecasting
Unique Features	First ESA mission dedicated to precision formation flying, using smaller, agile satellites for cost-effective observation
International Collaboration	Jointly developed by ESA and ISRO, with contributions from France, Belgium, and the Netherlands
Communication Support	Managed via antenna in Santa Maria (Azores) and ground station in Redu (Belgium)
Significance	Advances solar research and international collaboration; enhances space weather insights, supporting infrastructure on Earth

PYQ:

[2016] What is ‘Greased Lightning-10 (GL-10)’, recently in the news?

(a) Electric plane tested by NASA

(b) Solar-powered two-seater aircraft designed by Japan

(d) Reusable rocket designed by ISRO

November 7, 2024

How Vitamin D deficiency can trigger autoimmune conditions?

Why in the News?

Recent research conducted by scientists at McGill University has shed light on the critical role of vitamin D in maintaining thymus health and its implications for immune function.

About Autoimmune Conditions:

Autoimmune conditions refer to disorders where the immune system mistakenly attacks the body’s own healthy tissues, viewing them as foreign.
Vitamin D plays a role in regulating immune responses and promoting immune tolerance—the body’s ability to avoid attacking its own cells.
It influences T-cells (a type of immune cell) to recognize and tolerate the body’s own tissues rather than attacking them.
The thymus gland trains T-cells to avoid attacking healthy cells. A deficiency in Vitamin D may cause the thymus to age prematurely, reducing its ability to regulate T-cells properly.
- Vitamin D affects certain genetic pathways related to immune function.
- Variations in the vitamin D receptor (VDR) gene may also predispose some individuals to autoimmune diseases, and these individuals might be more sensitive to Vitamin D levels.

What is Vitamin D?

Vitamin D is a fat-soluble vitamin crucial for the body’s ability to absorb calcium, magnesium, and phosphate, which are essential for bone health.
It supports muscle movement, nerve function, and immune system responses. Due to its synthesis in the skin upon exposure to sunlight, it is often called the ‘sunshine vitamin’.
The body naturally produces Vitamin D when skin is exposed to ultraviolet B (UVB) rays from sunlight.
Sources of Vitamin D:
- Fish: Salmon, mackerel, tuna, and sardines are rich in Vitamin D.
- Cod liver oil: A concentrated source, providing 400–1,000 IU per teaspoon.
- Mushrooms: Varieties like portobello contain Vitamin D if exposed to UV light.
- Fortified Foods: Milk, yogurt, orange juice, and cereals often have added Vitamin D.
- Egg yolks: Contain a small amount of Vitamin D.
- Common forms include Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol), especially useful in autumn and winter when sunlight exposure is limited.

Significance of Vitamin D

Bone Health: Essential for calcium absorption, which strengthens bones and prevents osteoporosis.
Muscle and Nerve Function: Supports muscle contractions and nerve signaling between the brain and body.
Immune System: Enhances immune defenses, helping to fight off infections by viruses and bacteria.
Brain Health: May play a role in maintaining cognitive health, especially with aging.
Inflammation and Pain: Helps regulate the body’s response to inflammation and pain.
Blood Pressure: Linked to regulating blood pressure; deficiency is associated with hypertension.

Impacts of Vitamin D Deficiency

Increases the risk of rickets in children (softening of bones) and osteoporosis in adults.
Low levels of Vitamin D are linked to autoimmune conditions like rheumatoid arthritis, lupus, and multiple sclerosis.
Recent studies indicate that Vitamin D deficiency can accelerate thymus aging, leading to immune dysfunction and a higher risk of autoimmune diseases.
Deficiency has been associated with cancer, cardiovascular disease, diabetes, depression, and chronic pain.
Can include fatigue, muscle weakness, bone pain, and depression.
In severe cases, deficiency may cause impaired bone growth and fracture susceptibility.

PYQ:

[2011] Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

(a) They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.

(b) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.

(d) They activate certain genes in the cells of the body and help delay the ageing process.

November 7, 2024

[pib] Development of Tuna Cluster in Andaman and Nicobar Islands

Why in the News?

The Department of Fisheries has notified the creation of a Tuna Cluster in the Andaman and Nicobar Islands as part of the Pradhan Mantri Matsya Sampada Yojana (PMMSY).

The A&N Islands offer significant opportunities for fisheries development with approximately 6.0 lakh square km of Exclusive Economic Zone (EEZ).
This region has rich sea resources, particularly Tuna and Tuna-like species, with an estimated potential of 60,000 metric tons.
The islands’ location near Southeast Asia enables efficient sea and air trade, and the pristine waters support sustainable fishing.

About Tuna Species and its Significance

Tuna are large, fast-swimming fish belonging to the Thunnini tribe within the Scombridae family.
Known for their streamlined bodies and remarkable agility, tuna are found in tropical and temperate oceans worldwide.
There are over 15 species of tuna, with some of the most well-known being Bluefin, Yellowfin, Albacore, Bigeye, and Skipjack.
Tuna can grow quickly and live for several decades, with species like Bluefin reaching over 450 kg in weight.
It is one of the most popular and valuable fish in the global seafood market, highly sought after for its flavor, texture, and nutritional value.
Species like Bluefin tuna are particularly valuable, often fetching high prices in markets, especially in Japan for dishes like sushi and sashimi.
It is rich in protein, low in saturated fat, and packed with omega-3 fatty acids, which support heart health, brain function, and inflammation reduction.
It also provides essential vitamins and minerals like Vitamin D, B12, iron, and selenium.

PYQ:

[2013] The most important fishing grounds of the world are found in the regions where

(a) Warm and cold atmospheric currents meet

(b) Rivers drain out large amounts of freshwater into the sea

(d) Continental shelf is undulating

November 7, 2024

Does the Sun rotate?

sun

Why in the News?

Indian astronomers at the Kodaikanal Solar Observatory (KSO) have achieved a groundbreaking feat by mapping, for the first time, the variation in the Sun’s rotation speed from its equator to its poles.

Sun’s Rotation: Key Facts

Unlike a solid body, the Sun exhibits differential rotation, meaning different parts of the Sun rotate at different speeds.
The rotation speed varies depending on latitude, with faster rotation near the equator and slower rotation toward the poles.
This variation is primarily due to the Sun’s composition of gaseous plasma rather than solid material.

Rotation Period Variation by Latitude:

Equatorial Regions: The rotation period at the equator is the fastest, around 24.47 days (sidereal rotation).
Sunspot Zones (about 16 degrees latitude): Rotation slows slightly, with a period of about 27.3 days.
Higher Latitudes (up to 75 degrees): Rotation slows significantly; for example, at 75 degrees latitude, the rotation period is about 33.4 days.
Poles: The slowest rotation occurs at the poles, with a period around 31.1 days.

Sidereal vs. Synodic Rotation Periods:

Sidereal Rotation Period: The time taken for the Sun to complete one full rotation relative to distant stars. It varies by latitude, from 24.47 days at the equator to around 33.4 days at higher latitudes.
Synodic Rotation Period: This is the time for a fixed feature on the Sun to appear in the same position when observed from Earth. It is longer than the sidereal period due to Earth’s own movement around the Sun, averaging around 26.24 days.

Why Differential Rotation Occur?

Gaseous Plasma Composition: The Sun is composed of plasma—a hot, ionized state of matter—which allows its different regions to rotate at different speeds.
Convective Zone Dynamics: The outer convective layer of the Sun contributes to differential rotation. Plasma circulates, rising and sinking, which influences the rotational speed at different latitudes.

Scientific Implications

Solar Dynamo Theory: The differential rotation of the Sun is central to theories about the solar dynamo—the process that generates the Sun’s magnetic field.
Mystery of Differential Rotation: Despite extensive research, the exact mechanism behind the Sun’s differential rotation remains an active area of investigation in solar physics.

PYQ:

[2013] Consider the following phenomena

1. Size of the sun at dusk

2. Colure of the sun at dawn

3. Moon being visible at dawn

4. Twinkle of stars in the sky

5. Polestar being visible in the sky

Which of the above are optical illusions?

(a) 1, 2 and 3

(b) 3, 4 and 5

(d) 2, 3 and 5

November 6, 2024

Forging a future of Self-sufficiency and Economic Resilience

Why in the News?

Chhattisgarh, with its cultural richness and natural resources, is starting an industrial path with the 2024-29 policy.

This plan is part of “Amritkaal: Chhattisgarh Vision@2047” to grow self-sufficient.

CASE STUDY: “Amritkaal: Chhattisgarh Vision@2047

This policy introduces special provisions for marginalized groups, including surrendered Naxals, women, and the third-gender community. This inclusivity aims to empower these groups socio-economically.
Specific packages are designed to support entrepreneurship among these communities through training and financial assistance, facilitating their integration into mainstream society.
The ‘Amritkaal’ policy classifies development areas into three groups based on their industrialization levels, ensuring that incentives are targeted towards backward areas to promote balanced growth across the state.
- Focus on Sustainable Industries: There is a strong emphasis on promoting pollution-free industries, particularly in electric vehicle manufacturing and environmentally friendly products, ensuring sustainable growth.
- Support for Start-ups: A dedicated fund of ₹50 crore has been allocated to support start-ups, encouraging innovation and entrepreneurship throughout the state.

What strategies can be implemented to enhance economic resilience in communities?

For Targeted Training Programs: Implementing skill development initiatives tailored for marginalized groups can help them acquire the necessary skills for self-employment and entrepreneurship.
For Financial Assistance and Subsidies: Providing subsidized loans and financial incentives can lower barriers for starting new businesses, especially for women and the third-gender community.
For Establishment of Industrial Corridors: Developing industrial corridors can enhance connectivity and create a conducive environment for industries to thrive, leading to job creation and economic diversification.

How does self-sufficiency contribute to overall economic stability?

Reduced Dependency: Self-sufficiency allows communities to rely less on external resources, making them more resilient to economic shocks and fluctuations in global markets.
Local Job Creation: By fostering local industries and entrepreneurship, self-sufficiency contributes to job creation within communities, enhancing overall economic stability.
Sustainable Growth: Emphasizing sustainable practices ensures that economic growth does not come at the expense of environmental degradation, promoting long-term stability.

What role do various stakeholders play in fostering economic resilience?

Government: The government plays a crucial role by formulating policies that provide incentives and support for industrial development. It also facilitates training programs and infrastructure development.
Local Businesses and Entrepreneurs: Local businesses contribute by creating jobs and stimulating the economy. Entrepreneurs drive innovation and respond effectively to local market needs.
Community Organizations: NGOs and community organizations can assist in identifying the needs of marginalized groups and facilitate access to resources such as training and financial assistance.

Way forward:

Integrated Community Development Programs: Establish comprehensive programs that unite training, financial assistance, and mentorship specifically for marginalized groups.
Public-Private Partnerships for Infrastructure Development: Encourage collaboration between the government and private sector to develop industrial corridors and infrastructure that facilitate economic activities.

Mains PYQ:

Q Can the strategy of regional-resource-based manufacturing help in promoting employment in India? (UPSC IAS/2019)

November 5, 2024

What Australian varsity study says about impact of India’s Dedicated Freight Corridors

Why in the News?

Dedicated Freight Corridors are boosting India’s GDP and significantly enhancing Indian Railways’ revenue, according to a recent study by Australia’s University of New South Wales.

What are dedicated freight corridors (DFCs)?

Dedicated Freight Corridors (DFCs) are specialized railway tracks for freight transportation, designed to improve efficiency with faster, high-capacity trains like double-stack containers and heavy-haul freight trains.

What is the Present Status?

India has two main DFCs:
- Eastern DFC (EDFC): Spanning 1,337 km from Sonnagar (Bihar) to Sahnewal (Punjab). The EDFC is operational and includes feeder routes connecting coal mines and thermal plants.
- Western DFC (WDFC): Extends 1,506 km from Jawaharlal Nehru Port (Mumbai) to Dadri (Uttar Pradesh). The WDFC is 93% complete, serving major ports in Gujarat. Full completion is expected by December 2025.
As of March 31, 2024, the project has incurred costs of ₹94,091 crore, excluding land acquisition.

What does the Australian varsity study say?

Conducted by the University of New South Wales, this study used a Computable General Equilibrium model to assess the WDFC’s impact, specifically from FY 2019–20.
The study’s findings include:
- Reduced freight costs and travel times have decreased commodity prices by up to 0.5%.
- The DFCs contributed to a 2.94% increase in Indian Railways’ revenue between FY 2022–23 and FY 2018–19.
- Western regions gained significantly from reduced freight costs, which had a “social-equalizing effect,” benefiting states with lower per capita GDP.
Published in Elsevier, the study integrated freight costs, industry inputs, population data, and rail and road data.

What economic benefits do Dedicated Freight Corridors (DFCs) bring to India?

Improved Supply Chains: DFCs provide faster, efficient transit for freight, enhancing the supply chain for industries and logistics providers.
Cost Savings: Reduction in freight transport costs lowers overall logistics expenses, which can lead to price reductions for consumers.
Revenue Growth for Railways: DFCs have directly contributed to revenue increases, supporting the Railways’ finances.
Increased Freight Share: The corridors are key to meeting the National Rail Plan’s target of achieving a 45% rail share in freight by 2030.
Exports and Imports: Faster, dedicated freight routes boost export-import activities, as DFCs support port connectivity, particularly in the West.

How do DFCs enhance the overall logistics and transportation infrastructure in India?

Decongested Rail Network: By shifting freight traffic off the main passenger routes (e.g., the Golden Quadrilateral), DFCs alleviate congestion, improving both freight and passenger rail reliability.
Regional Development: States along the DFC routes experience increased industrial activity due to improved logistics support, which can enhance local economies and job creation.
Future Corridors: Plans are underway for four additional corridors (East Coast, East-West I & II, North-South) to further expand the freight network, enhancing connectivity across the country.

Current Operational Status and Future Outlook

As of now, 325 trains run daily on the DFCs, which is a 60% increase from the previous year.
DFC trains are faster, safer, and capable of carrying heavier loads, contributing to over 10% of Indian Railways’ total freight operations.
DFCCIL is conducting further research on DFCs’ economic impact, with results expected soon, which will provide deeper insights into their long-term contributions to India’s economic growth.

Challenges related to the development of DFC:

Land Acquisition Delays: Acquiring over 8,800 hectares, often privately owned and developed land, has caused setbacks, with disputes and legal cases prolonging the process.
Escalating Costs: Project costs have surged significantly, with Japan International Cooperation Agency (JBIC) noting that expenses have nearly doubled, raising concerns about financial viability and potential investor reluctance.
Technology Disputes: Differences over locomotive technology—diesel versus electric—pose delays, as stakeholders like Indian Railways and JBIC debate environmentally friendly solutions.
Utility and Infrastructure Challenges: Shifting utilities (power lines, water pipes) and constructing road overbridges and under-bridges add logistical complexities.
Funding and Financial Management: Reliance on external funding and the need for efficient resource management impact project timelines and execution stability.

Way Forward:

Streamlined Land Acquisition and Cost Management: Need to implement a centralized framework for faster land acquisition and cost oversight to mitigate delays and prevent cost escalations, ensuring project feasibility and investor confidence.
Technological and Funding Consensus: Need to establish clear technology standards (e.g., electric locomotives) for environmental benefits and secure diversified funding sources to reduce dependence on external financing, enabling timely completion and sustainable operations.

Mains PYQ:

Q “Investment in infrastructure is essential for more rapid and inclusive economic growth.” Discuss in the light of India’s experience. (UPSC IAS/2021)

November 5, 2024

First ‘Black Hole Triple’ System Discovered

Scientists have discovered a “black hole triple” in space, marking the first time such a system has been identified.

Why in the News?

Scientists have discovered a “black hole triple” in space, marking the first time such a system has been identified.

Black Hole Triple: What does it mean?

Many black holes are found in binary systems with another star or black hole.
This triple system includes two stars orbiting a black hole:
- The nearer star orbits the black hole every 6.5 days.
- The distant star orbits approximately every 70,000 years.
The system, located in the constellation Cygnus, features V404 Cygni, one of the oldest black holes known, which is nine times larger than the Sun.
It is 8,000 light years away from Earth.

What is a Black Hole?

A black hole is a space region with such strong gravity that no light or matter can escape.
Most black holes form from supernova explosions—the death of massive stars.
This triple system suggests an alternative, less violent formation process.

How was it discovered?

Researchers from Caltech and MIT discovered the system while reviewing astronomical data from telescopes.
They described the stars as being gravitationally bound, indicating they form a triple system.
It is believed that V404 Cygni did not form through a supernova explosion, which typically ejects outer stars.
Instead, it likely formed through direct collapse: the star collapsed inward without exploding.
Known as a “failed supernova”, this process causes an implosion without expelling matter, leading to a gentler black hole formation.

Future of the Triple System

The triple system may not remain as such, as V404 Cygni is consuming the nearby star.
This discovery suggests that some existing binary systems may have originally been triple systems, where the black hole later consumed one of its members.

PYQ:

[2019] Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

(a) ‘Higgs boson particles’ were detected.
(b) ‘Gravitational waves’ were detected.
(c) Possibility of inter-galactic space travel through ‘wormhole’ was confirmed.
(d) It enabled the scientists to understand ‘singularity’

November 5, 2024

Kalka-Shimla Heritage Railway Track

Why in the News?

Himachal Pradesh CM has requested the Centre to consider running the Kalka-Shimla narrow-gauge railway—a UNESCO World Heritage Site—on green hydrogen to promote clean energy.
- The CM emphasized that this initiative aligns with Himachal Pradesh’s goal of becoming a ‘green energy state’ by March 31, 2026.

About the Kalka-Shimla Railway

The Kalka-Shimla Railway is a narrow-gauge railway with a width of 2 ft 6 in (762 mm).
It was constructed in 1898 to link Shimla with the broader Indian rail system under the guidance of chief engineer H. S. Harington.
The total length of the railway is approximately 96.6 km.
This engineering marvel features 107 tunnels, of which 102 are still in use, along with 864 bridges along its route.
The railway has a ruling gradient of 1 in 33 (about 3%), making it quite a steep climb in places, and it includes 919 curves, with the sharpest curve being at 48 degrees.
The elevation of the railway starts at 656 meters (2,152 feet) in Kalka and rises to 2,076 meters (6,811 feet) in Shimla, resulting in a height difference of 1,420 meters (4,660 feet).
Diesel locomotives began operation on the railway in 1955, followed by diesel-hydraulic models introduced in 1970.
On 8 July 2008, it was designated as a UNESCO World Heritage Site as part of the Mountain Railways of India.

Note:

Three of the lines, the Darjeeling Himalayan Railway, the Nilgiri Mountain Railway, and the Kalka–Shimla Railway, are collectively designated as a UNESCO World Heritage Site under the name “Mountain Railways of India”.
Two more, the Matheran Hill Railway and the Kangra Valley Railway, are on the tentative list of UNESCO World Heritage Sites.
The Nilgiri Mountain Railway is also the only rack and pinion railway in India.

PYQ:

[2015] With reference to bio-toilets used by the Indian Railways, consider the following statements:

1. The decomposition of human waste in the bio toilets is initiated by a fungal inoculum.

2. Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 only

(d) Neither 1 nor 2

November 5, 2024

Assessing India’s Tuberculosis burden

Why in the News?

The Global Tuberculosis Report 2024 presented by WHO indicates that India recorded the highest burden of tuberculosis (TB) in 2023.

Current Scope of Tuberculosis in India

High Burden: According to the Global Tuberculosis Report 2024, India accounts for 26% of all tuberculosis (TB) cases worldwide, making it the country with the highest TB burden. The report indicates that over 55.9% of global TB cases are concentrated in five countries: India, Indonesia, China, the Philippines, and Pakistan.
Mortality Rates: Although TB deaths in India have decreased from 580,000 in 2010 to 320,000 in 2023, the country still accounted for 26% of global TB deaths among people with and without HIV in 2023.
Incidence Trends: The incidence of TB has decreased from 275.7 cases per 100,000 population in 2010 to 194.9 cases in 2023. However, there has been a notable increase in notified TB relapse cases, reaching the highest level since 2010.
Risk Factors: Individuals with nutritional deficiencies, diabetes, and smoking habits are at the highest risk of contracting TB. The prevalence of TB infection among individuals aged 15 and older is reported at 31.4%, according to the National TB Prevalence Survey conducted from 2019-2021.
Preventive Treatment Uptake: The number of people receiving preventive treatment has been rising, indicating an increased focus on preventing TB progression among high-risk populations.

Strategies and Programs Implemented by Govt to Reduce TB Incidence

National Tuberculosis Elimination Program (NTEP): This program aims to eliminate TB by 2025 through various strategies including early diagnosis, treatment support, and preventive measures.
TB Preventive Therapy (TPT): The introduction of TPT marks a significant shift in TB care in India. It focuses on providing preventive treatment to individuals at high risk of developing active TB.
Project Axshya Plus: Launched with support from the Global Fund, this project implements comprehensive interventions such as contact tracing, testing for infection, and managing latent TB infections.
Increased Funding: Domestic funding for TB prevention and treatment increased by 38% in 2023 to $253 million, although international funding has declined during the same period.
Community Engagement Initiatives: Programs like the Pradhan Mantri TB Mukt Bharat Abhiyan encourage community involvement in supporting TB patients through initiatives like Ni-kshay Mitras.
Digital Health Initiatives: The NTEP leverages digital platforms for monitoring patient progress and ensuring adherence to treatment protocols through tools like the Nikshay portal.
Awareness Campaigns: Public health campaigns aim to reduce stigma associated with TB and educate communities about prevention and treatment options.

Challenges India Faces in Eliminating Tuberculosis by 2025

Funding and Infrastructure Gaps: Despite increases in domestic funding, overall financial resources remain lower than pre-COVID levels, impacting program implementation and outreach efforts.
- Inadequate healthcare infrastructure, particularly in rural areas, hampers access to timely diagnosis and treatment for many patients.
- The COVID-19 pandemic disrupted TB services significantly, leading to a backlog of undiagnosed cases and impacting ongoing treatment programs.
Stigma and Discrimination: Stigma associated with TB continues to deter individuals from seeking diagnosis and treatment, which can lead to delayed care and increased transmission rates.
- Social determinants such as poverty, malnutrition, and living conditions contribute to higher susceptibility to TB among vulnerable populations.
Drug Resistance Issues: The rise of drug-resistant strains of TB poses significant challenges for effective treatment and control strategies.
Multi-sectoral Coordination Challenges: Effective elimination requires collaboration across various sectors (healthcare, education, social services), which can be challenging due to bureaucratic hurdles.

Way forward:

Strengthening Multi-Sectoral Coordination: There is a need to foster collaboration among healthcare, education, and social services to address the social determinants of TB.
Enhancing Accessibility and Outreach: Need to improve access to TB diagnosis and treatment in rural areas by investing in healthcare infrastructure, training local health workers, and implementing mobile health units.

Mains PYQ:

Q Can overuse and free availability of antibiotics without Doctor’s prescription, be contributors to the emergence of drug-resistant diseases in India? What are the available mechanisms for monitoring and control? Critically discuss the various issues involved. (2014)

November 4, 2024

Airports where pilots could fear to land

Why in the News?

The October 25, 2024, incident where a Qatar Airways Boeing 787’s landing gear sank into a collapsed ramp at Doha underscores the importance of runway safety concerns.
Similar risks exist in Chennai Airport’s expansion plans and the greenfield project at Parandur, where soil stability and structural integrity are critical issues that must not be overlooked.

Background

The Chennai airport expansion, initially proposed in 2007, faced design and safety issues, including unsuitable soil for a parallel runway and violations in bridge construction standards, raising concerns about infrastructure reliability and potential flooding risks in future projects.

What are the specific challenges and risks pilots face when landing at these airports?

Runway Integrity: Pilots may encounter challenges if the runway or taxiways have structural weaknesses or are poorly designed, such as in the case of Doha, where the ground beneath collapsed under the aircraft’s weight.
Crosswinds and Weather Conditions: Airports located near water bodies or in regions with extreme weather may present challenges during landing, such as turbulence from crosswinds or sudden weather changes, increasing the risk of hard landings or runway excursions.
Ground Handling: The condition of the ground infrastructure, including taxiways and ramps, is critical. Pilots must be cautious of soft spots or areas not properly constructed to withstand aircraft weight, which can lead to accidents.
Limited Runway Width and Length: Airports with insufficient runway dimensions may restrict landing and takeoff performance for larger aircraft, posing risks during adverse conditions where longer stopping distances are required.
Inadequate Visual Aids: Poorly designed lighting and navigational aids can impair a pilot’s ability to assess runway conditions, especially in low visibility scenarios.
Safety Compliance: Non-compliance with international aviation standards during the design and construction phases may lead to operational hazards that pilots must navigate.

How do airport design and infrastructure impact aviation safety?

Structural Reliability: The strength and reliability of runway surfaces directly affect safety. Insufficient ground support may lead to structural failures under heavy loads, as seen in the Doha incident.
Drainage Systems: Effective drainage systems are vital for preventing water accumulation on runways, which can lead to hydroplaning and loss of control during landings.
Environmental Considerations: The placement of airports in flood-prone areas without adequate flood management strategies can compromise safety during heavy rainfall, as experienced in Chennai.
Design Standards: Compliance with International Civil Aviation Organization (ICAO) standards is crucial for ensuring that airports are capable of safely accommodating various aircraft types.
Construction Quality: The choice of construction materials and techniques directly impacts the longevity and safety of airport infrastructure. Cost-cutting measures may lead to substandard designs.

What measures are being taken to enhance pilot training and operational procedures at these high-risk airports? (Way forward)

Enhanced Simulation Training: Pilots receive advanced simulation training to handle specific challenges associated with landing at high-risk airports, including crosswind landings and emergencies on compromised runways.
Regular Safety Audits: Conduct audits and inspections of airport facilities and infrastructure to ensure compliance with safety standards and identify potential hazards.
Real-time Weather Updates: Implementation of systems that provide pilots with real-time updates on weather conditions and runway status, helping them make informed decisions during landings.
Collaboration with Engineers: Continuous collaboration between pilots and airport engineers during the planning and construction phases to address potential safety issues upfront.
Training on Emergency Protocols: Training programs that include scenarios specific to airports with known risks, ensuring pilots are prepared for emergencies related to runway or taxiway failures.

Mains PYQ:

Q Examine the development of Airports in India through joint ventures under Public – Private Partnership (PPP) model. What are the challenges faced by the authorities in this regard. (2017)

November 4, 2024