Development of an Integrated Safety Assessment Framework for Hazard Identification and Risk Assessment of Gas Pipeline Installation Works in the Indian Construction Industry
Jul 2026· International Journal of Advanced Research in Science, Communication and Technology· 0 citations· 16 references
Abstract
Natural gas has emerged as one of the major energy sources supporting India's petrochemical, power generation, fertilizer, refinery, and manufacturing sectors. The continuous expansion of cross-country gas pipeline networks under the national energy infrastructure has significantly increased the demand for safe and reliable pipeline installation practices. However, gas pipeline construction involves several high-risk activities, including excavation, trenching, Horizontal Directional Drilling (HDD), pipe lifting, welding, hydrostatic testing, and confined space operations, which expose workers to multiple occupational hazards and increase the likelihood of accidents if appropriate safety measures are not implemented.
The present study aims to develop an integrated safety assessment framework for hazard identification, risk assessment, and risk control during gas pipeline installation works. The research focuses on identifying hazards associated with various construction activities, evaluating their risk levels, and recommending appropriate control measures to improve occupational safety and reduce accident potential. The study adopts a comprehensive methodology comprising questionnaire-based survey analysis involving 127 professionals associated with gas pipeline construction, systematic site observation of actual construction practices, Fault Tree Analysis (FTA) for determining root causes of critical accident scenarios, and Hazard Identification, Risk Assessment and Risk Control (HIRARC) for qualitative risk evaluation and prioritization. The integration of these techniques provides a systematic approach for identifying unsafe acts, unsafe conditions, human factors, equipment failures, and management deficiencies contributing to construction-related incidents.
The findings indicate that unsafe worker behaviour, inadequate supervision, poor safety compliance, ineffective communication, and deficiencies in risk control measures are among the major contributors to occupational accidents during gas pipeline installation. Fault Tree Analysis revealed that seemingly minor unsafe conditions and procedural deviations can combine to produce catastrophic events, while HIRARC effectively prioritizes hazards according to their likelihood and severity, enabling the implementation of suitable engineering, administrative, and personal protective control measures. The study further emphasizes that active management commitment, competent safety professionals, regular site inspections, safety induction programmes, toolbox talks, and continuous monitoring significantly enhance workplace safety performance.
The proposed integrated safety assessment framework offers a practical and systematic approach for strengthening safety management in gas pipeline construction projects in India. The outcomes of this research can assist project owners, contractors, safety professionals, and regulatory agencies in improving hazard identification, minimizing occupational risks, enhancing safety compliance, and promoting a proactive safety culture throughout the lifecycle of gas pipeline installation projects.
Industrial safety has become a major concern in modern manufacturing industries due to the increasing complexity of industrial processes, the use of hazardous materials, high operating temperatures, combustible gases, pressurized systems, and automated production facilities. Among various manufacturing sectors, steel industries are considered one of the most hazardous because of the presence of fire, explosion, toxic gas release, confined spaces, heavy material handling, molten metal operations, rotating machinery, and high-energy process equipment. Effective Process Safety Management (PSM) is therefore essential to identify potential hazards, assess associated risks, and implement appropriate preventive and protective measures to minimize the likelihood and consequences of major industrial accidents.
The primary objective of this research is to develop an Integrated Process Safety Management (PSM) Framework for systematic hazard identification, risk assessment, consequence analysis, and risk mitigation in steel manufacturing industries. The proposed framework integrates internationally accepted process safety principles with practical industrial safety methodologies to establish a structured approach for managing process-related hazards. The study emphasizes proactive risk management by identifying hazardous scenarios, evaluating the probability and severity of potential incidents, and recommending suitable engineering, administrative, and operational control measures for improving overall process safety performance.
The research incorporates multiple hazard analysis techniques, including Hazard Identification (HAZID), Process Hazard Analysis (PHA), Hazard Identification and Risk Assessment (HIRA), qualitative risk matrix methodology, consequence analysis, and risk evaluation to investigate various process units and operational activities. Hazards associated with fire, explosion, toxic gas release, confined space entry, work at height, material handling, rotating equipment, electrical systems, pressure vessels, and chemical handling are systematically identified and analyzed. Risk levels are determined by considering both the likelihood of occurrence and the severity of potential consequences, enabling the prioritization of critical hazards requiring immediate attention.
Furthermore, consequence analysis is carried out to evaluate the possible impact of major accident scenarios involving fire, explosion, and toxic releases. The study also proposes appropriate risk reduction strategies based on the hierarchy of controls, engineering modifications, preventive maintenance, standard operating procedures, permit-to-work systems, process monitoring, emergency preparedness, and personnel competency development. A qualitative risk matrix is utilized to classify identified hazards into high, medium, and low-risk categories. High-risk scenarios require immediate corrective actions and implementation of effective control measures, whereas medium-risk activities require continuous monitoring and risk reduction based on the As Low As Reasonably Practicable (ALARP) principle. Low-risk activities are considered acceptable under routine operational control and periodic safety review.
In addition to hazard analysis and risk evaluation, the proposed framework highlights the significance of continuous safety improvement through systematic safety audits, incident investigation, process safety performance indicators, emergency response planning, disaster management planning, safety training, and organizational safety culture. The integration of these Process Safety Management elements establishes a comprehensive safety management system capable of reducing process-related incidents, improving regulatory compliance, enhancing operational reliability, and supporting sustainable industrial development. The framework also provides practical guidance for implementing preventive safety measures throughout the operational lifecycle of steel manufacturing processes.
The findings of this study demonstrate that an integrated Process Safety Management approach significantly improves hazard control, strengthens decision-making in risk management, and enhances the effectiveness of consequence-based safety planning. The proposed framework serves as a practical decision-support tool for industrial safety professionals, plant managers, and process engineers in identifying critical hazards, evaluating operational risks, and implementing appropriate mitigation strategies. The methodology developed in this research is generic in nature and can be effectively adapted to other high-risk process industries, thereby contributing to safer industrial operations, improved organizational resilience, and sustainable process safety performance.
Raj Dhanyakumar Kale, Mohsin Khan and Dr. Neeta Ba· International Journal of Adv...· 0 citations
The chemical process industry is indispensable to modern society but involves inherent risks associated with toxic,
flammable, reactive and corrosive substances, high pressures and temperatures, complex process interactions and large
inventories. Although major accidents are relatively infrequent, their consequences may extend beyond the plant boundary
and affect workers, emergency responders, communities, infrastructure and the environment. This review re-examines
chemical-industry safety and security from an integrated process-safety and disaster-risk-management perspective, using
the author's earlier article as its foundation while substantially rewriting and expanding its content. The review covers
hazard identification, HAZOP, What-If analysis, FMEA, fault-tree analysis, Layer of Protection Analysis, quantitative risk
assessment, inherently safer design, management of change, safety instrumented systems, mechanical integrity, human
factors, emergency planning and community preparedness. It also considers natural-hazard-triggered technological
accidents, the Indian regulatory framework and international approaches including OSHA Process Safety Management and
ISO 45001. Recent developments in digitalization, sensors, predictive analytics, digital twins and artificial intelligence are
examined as opportunities for early warning and decision support, together with their cybersecurity and human-factor
implications. The review concludes that effective chemical safety cannot depend on a single safeguard. It requires a
continuously verified system integrating safer design, reliable equipment, competent people, strong safety culture,
emergency preparedness, physical and cyber security, and organizational learning.
Ashok Agarwal· International Journal of Inn...· 0 citations
The rapid transition towards renewable energy in India, driven by ambitious national targets and the need for sustainable development, has catalyzed a massive surge in the construction of utility-scale solar power plants. While these mega-projects are indispensable for achieving energy independence and reducing the national carbon footprint, their extensive and fast-paced construction phases introduce highly complex occupational health and safety challenges. This research presents a comprehensive investigation into Hazard Identification and Risk Assessment (HIRA) meticulously tailored for the unique environment of large-scale solar project sites across India
Renewable power plants are booming these days. Constructions of renewable power plants pose serious risks to workers safety and health. To ensure its success we need to make sure that it remains safe, reliable and sustainable throughout its construction and operation phase. This can be achieved by effectively evaluating a power plant’s health and safety, associated hazards and risks and implementing necessary control measures. In this study, we have used a HIRARC (Hazard Identification, Risk assessment & Risk control) model to identify all the hazards and associated risk to the worker’s safety and health on a 350MW Solar Power plant unit-I and Unit-II. Hazard identification is carried out by critically analyzing existing risk assessments, interviewing personnel and conducting walkthroughs. Risk assessment is carried out using qualitative analysis of hazard’s likelihood and its consequence severity. Quantitative analysis is used to divide the risk in high, medium and low categories using simple 5X5 risk matrix. The findings were then used to identify and recommend necessary control measures to deal with high risk activities and bring down its risk level to an acceptable range. The aim of this study is to make solar power projects much safer and accident free by identifying significant hazards, evaluating the associated risks and determining the necessary control measures based on the basic risk control hierarchy. These measures will help in making solar power projects a safer project sites, reducing accident rates at site, reducing staff turnover rates, improving safety culture and increasing worker’s satisfaction in terms of safety.
The study systematically evaluates the entire construction lifecycle—ranging from initial site clearing, heavy earthmoving, and foundation piling, to the erection of Module Mounting Structures (MMS), Photovoltaic (PV) panel installation, deep trenching, and the critical commissioning of high-voltage electrical infrastructure such as inverters and transformers. Through a robust methodology combining rigorous site observations, historical incident analysis, and structured questionnaire surveys distributed among site engineers, safety officers, and project managers, a wide spectrum of unsafe acts and environmental conditions was documented. The research highlights critical occupational hazards, including high-voltage electrical risks (arc flashes and shocks), mechanical entrapments during heavy material lifting, ergonomic strains from repetitive module handling, and fall hazards during structural erection, and extreme thermal stress due to prolonged exposure to harsh Indian weather conditions.
Utilizing both quantitative and qualitative risk assessment tools, including the Relative Importance Index (RII) and standardized Risk Matrices, the identified hazards are systematically ranked based on their probability of occurrence and potential severity. The analysis isolates the most acute safety vulnerabilities that demand immediate managerial intervention. Consequently, this study proposes a site-specific framework of mitigation strategies, integrating engineering controls, stringent administrative protocols, and the mandate of specialized Personal Protective Equipment (PPE). Ultimately, this research provides a pivotal safety management blueprint for industry stakeholders, aiming to eliminate workplace accidents, ensure strict regulatory compliance, minimize costly project delays, and foster a sustainable safety culture within India's booming solar infrastructure sector
Gali Yashwanth Chowdary, Mohsin Khan, Dr. Madhuri · International Journal of Adv...· 0 citations
Petroleum hydrocarbon releases from storage facilities represent a major environmental risk, particularly under harsh operating conditions where corrosion can compromise asset integrity. Our study presents an integrated framework combining hazard analysis and Risk-Based Inspection (RBI) to improve the environmental safety of petroleum storage tanks. The methodology was applied to the SP1/RTI storage terminal operated by SONATRACH-TRC (National Company for Research, Production, Transport, Transformation, and Marketing of Hydrocarbons) in In-Amenas, Algeria, which comprises ten atmospheric storage tanks with a documented operational incident history. First, a systematic hazard study conducted by INERIS identified and ranked the hazardous phenomena associated with storage operations, providing an objective basis for equipment prioritization. Based on the resulting risk ranking, Tank A12 was selected as the most critical asset, and a routine visual inspection confirmed degradation mechanisms consistent with the identified hazards. Subsequently, an RBI assessment was performed using complementary non-destructive testing techniques, including Magnetic Flux Leakage (MFL) and Ultrasonic Testing (UT). The inspection revealed severe corrosion damage that substantially reduced the remaining service life of the tank and increased the likelihood of hydrocarbon leakage with potentially significant environmental consequences. Based on these findings, corrective maintenance was implemented in accordance with API 653 requirements, restoring the tank to safe operating conditions. Our proposed framework demonstrates that integrating systematic hazard analysis with RBI enables objective asset prioritization, improves inspection planning, and supports proactive integrity management. This approach provides a practical strategy for reducing environmental risks and enhancing the long-term safety and reliability of petroleum storage facilities operating under severe environmental conditions.
Hafida Kahoul, Mohamed Seddik Hellas, H. Zerrouki et al.· Scientific Reports· 0 citations
The construction industry, specifically the heavy infrastructure and underground sectors, acts as a primary catalyst for national economic development. It provides the basic physical framework for the nation while generating maximum jobs for skilled and unskilled labor in urban and rural areas. However, construction is inherently perilous, contributing to a substantial percentage of global occupational fatalities and injuries. The dynamic and constantly changing physical environments of construction sites necessitate a shift from traditional manufacturing-centric safety models. This comprehensive research paper presents an integrated framework combining Job Safety Analysis (JSA) and Hazard Identification and Risk Assessment (HIRA), tailored specifically for heavy infrastructure and underground metro construction. By systematically breaking down complex activities—such as deep shaft excavation, Tunnel Boring Machine (TBM) operations, scaffold erection, and heavy lifting—into fundamental job steps, this study identifies critical loss-of-control events. Quantitative risk assessment matrices are utilized to calculate Risk Priority Numbers (RPN) before and after the implementation of engineering controls, strict Permit to Work (PTW) systems, and specialized Personal Protective Equipment (PPE). The methodology evaluated 78 distinct construction stages, uncovering 847 potential loss-of-control events. The findings demonstrate a significant reduction in risk scores across all sectors, effectively transitioning 'Extreme-Intolerable' hazards to 'Low-Tolerable' limits. Ultimately, this research provides a proactive, actionable safety planning model, complete with exhaustive safety checklists and matrices, to achieve a 'zero-harm' environment in massive underground infrastructure projects
Mahavir Singh and P. S. Tathod· International Journal of Adv...· 0 citations
Oil and gas construction projects present a compound risk environment in which conventional construction hazards interact with hydrocarbon-process interfaces, temporary works, lifting, excavation, electrical activities, hot work and simultaneous operations (SIMOPS). This paper develops and demonstrates an integrated risk-prioritization framework that retains the practicality of a conventional probability–severity risk matrix while adding failure-mode analysis, explicit multi-criteria weighting and barrier-based Bow-Tie analysis. A case-based analytical study was undertaken using hazard and control information contained in supplied Oil and Gas infrastructure Limited HIRA and process-safety documents, together with publicly disclosed company safety information. Twenty major hazard scenarios were structured into a comparative dataset. Traditional risk was calculated as probability multiplied by severity. Failure Mode and Effects Analysis (FMEA) was then applied using severity, occurrence, frequency and detectability, followed by an Analytic Hierarchy Process (AHP) weighting scheme of 0.40, 0.25, 0.20 and 0.15 respectively. The resulting normalized integrated index, termed the Fuzzy/FMEA-AHP-inspired Risk Priority Index (FRPI), was used to rank hazards and guide Bow-Tie barrier selection. The analytical results placed excavation collapse, suspended-load struck-by, SIMOPS/communication failure, work at height/man basket and buried-utility strike among the highest priorities. Illustrative control scenarios reduced the baseline P×S scores by approximately 33–67%, depending on the hazard. The study demonstrates that an integrated approach can discriminate between hazards that receive similar traditional risk scores and can translate risk ranking into auditable preventive and mitigative barriers. The numerical expert-rating dataset is explicitly treated as an analytical demonstration dataset where authenticated field ratings were not present; therefore, the paper does not claim that these illustrative values are measured site observations. The framework is intended for validation through an authenticated project HSE expert panel before operational adoption.
Naresh Kumar and Dr. Neeta Banger· International Journal of Adv...· 0 citations
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