--- title: "Safety risk-benefit analysis; dispute resolution" subject: "Engineering Professional Practice" chapter: 6 key: "semester_8/engineering_professional_practice:safety-risk-benefit-conflict-resolution" source: https://www.bctengineer.com/q/semester_8/engineering_professional_practice/safety-risk-benefit-conflict-resolution site: BCT Engineering --- # Safety risk-benefit analysis; dispute resolution Engineering Professional Practice · Chapter 6: Contemporary Issues in Engineering - Asked in: 2072 Magh, 10 marks - Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14 - Page: https://www.bctengineer.com/q/semester_8/engineering_professional_practice/safety-risk-benefit-conflict-resolution - Whole chapter: https://www.bctengineer.com/md/semester_8/engineering_professional_practice/chapter-6 ## Question Describe safety risk and benefit analysis in engineering practice. How do you resolve conflicts and disputes arising in professional practice? ## Short answer Risk-benefit analysis compares expected harm against project benefits and safety costs, using hazard identification, probability/consequence estimation, and cost comparison, aiming for ALARP. Conflicts are resolved through negotiation, mediation, adjudication, arbitration and finally litigation, preferring collaborative win-win approaches and clear contracts. ## Answer #### Safety, risk and acceptable risk A thing is **safe** if its risks are known and judged acceptable by reasonable people in the light of their values. **Risk** is the possibility of harm; it is commonly measured as the probability of an event multiplied by the size of its consequence. No engineering product is absolutely safe, so engineers must decide how much risk is acceptable. The factors that influence acceptance are: whether the risk is voluntary, whether it is controllable, how severe and widespread the harm is, whether people have full information, and whether the benefit is large. #### Risk and benefit (cost-benefit) analysis It compares the expected risk (harm, cost of accidents) with the benefit of a project or design and the cost of making it safer. **Steps** 1. Identify the hazards and the people exposed. 2. Estimate the probability and consequence of each hazard (using FMEA, fault tree, event tree or HAZOP). 3. Estimate the cost of reducing the risk and the benefit obtained. 4. Convert harm and benefit into comparable terms (usually money), and compare them. 5. Decide, apply safety measures, monitor and review. A useful principle is **ALARP** (as low as reasonably practicable): reduce the risk until the cost of further reduction is grossly more than the benefit. **Example:** Deciding the height of a flood embankment: a higher embankment costs more but reduces the chance of a settlement being flooded. The engineer weighs the cost against the expected damage and loss of life. **Limitations:** it is difficult to put a value on human life; the probabilities are uncertain; the people who bear the risk may not be the ones who get the benefit; and long-term harm to the environment is often ignored. Hence the engineer must also use safety factors, codes and standards, inform the public honestly, and put public safety first (NEC code of conduct). #### Resolving conflicts and disputes A **conflict** is a disagreement of interests; it becomes a **dispute** when claims are formally made and opposed. The methods, starting from the cheapest, are: 1. **Prevention:** clear contracts, communication, regular meetings, written instructions. 2. **Negotiation:** the parties talk directly and agree. 3. **Mediation or conciliation:** a neutral person helps the parties reach an agreement (not binding unless agreed). The Mediation Act 2068 supports this in Nepal. 4. **Engineer's decision or Dispute Adjudication Board / Dispute Board:** as per the contract (FIDIC or PPMO standard bidding documents). 5. **Arbitration:** a neutral arbitrator or panel gives a binding decision under the Arbitration Act 2055 and the contract. 6. **Litigation:** a court case, the last resort, being slow and costly. The personal styles used to manage conflict are avoiding, accommodating, competing, compromising and collaborating; collaborating (win-win) is best where relationships must continue. The engineer should be fair, keep records, and follow the dispute clause of the contract. ## Check yourself The answer's key points as multiple-choice questions, with the correct option and why. 1. How is risk commonly measured according to the answer? A. Probability of an event multiplied by the size of its consequence B. Cost of the project divided by benefit C. Number of workers on site D. Consequence only, ignoring probability Answer: A. Risk is the possibility of harm, commonly measured as probability times consequence. (Key point: Definition of risk) 2. What does ALARP require? A. Reduce risk to zero regardless of cost B. Accept any risk if the project is profitable C. Reduce risk until the cost of further reduction is grossly more than the benefit D. Reduce risk only when a law forces it Answer: C. ALARP means as low as reasonably practicable: keep reducing risk until further reduction costs grossly more than its benefit. (Key point: ALARP principle) 3. Which is a limitation of risk-benefit analysis? A. It always gives an exact answer B. It never needs money values C. It is difficult to value human life, probabilities are uncertain, and those bearing the risk may not get the benefit D. It automatically includes long-term environmental harm Answer: C. The method struggles to put a value on life, relies on uncertain probabilities, may be unfair in who bears risk, and often ignores long-term environmental harm. (Key point: Limitations of cost-benefit analysis) 4. Which order of dispute-resolution methods, from cheapest to last resort, is correct? A. Litigation, arbitration, mediation, negotiation B. Arbitration, negotiation, litigation, mediation C. Mediation, litigation, negotiation, arbitration D. Prevention, negotiation, mediation, dispute board, arbitration, litigation Answer: D. Methods go from prevention, negotiation, mediation, engineer's decision/dispute board, arbitration (binding), to litigation as the slow, costly last resort. (Key point: Order of dispute resolution methods) ## Related in Engineering Professional Practice - [Engineering practice in Nepal](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Aengineering-practice-nepal) — Engineering Professional Practice, chapter 3 - [Safety first in engineering delivery](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Asafety-first-engineering) — Engineering Professional Practice, chapter 2 - [Globalization, PPP, conflict, safety engineering](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Aglobalization-ppp-conflict-safety) — Engineering Professional Practice, chapter 6 - [Short note: Conflict and dispute management](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Ashort-note-conflict-dispute-management) — Engineering Professional Practice, chapter 6 - [Short note: Professional institutions](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Ashort-note-professional-institutions) — Engineering Professional Practice, chapter 3 - [Moral dilemma and its resolution](https://www.bctengineer.com/question.md?key=semester_8%2Fengineering_professional_practice%3Amoral-dilemma-solving) — Engineering Professional Practice, chapter 2, asked 2× ## Related in other subjects - [Resolution of risk](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Aresolution-of-risk) — ICT Project Management, chapter 12 - [Socio-economic survey and social cost benefit analysis](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Asocio-economic-survey-scba) — Project Engineering, chapter 2, asked 3× - [Project proposal; cost benefit analysis for road](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Aproposal-cba-road-project) — Project Engineering, chapter 2 - [Short note: Cost-benefit analysis](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acost-benefit-analysis-note) — Project Engineering, chapter 2