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Define risk; types of project risk

Short answer

Risk is an uncertain event or condition that, if it occurs, affects project objectives positively or negatively, measured as probability times impact. Categories include technical, schedule, cost, financial, management, contractual, political/social, environmental/natural, safety and health, and market/commercial risks. Risks can also be pure or speculative, internal or external, negative or positive, and known or unknown.

Define risk. Explain the different types (categories) of project risk.

Definition

Risk is an uncertain event or condition which, if it occurs, has a positive or negative effect on the project objectives (scope, time, cost, quality). It is measured by the probability of the event and the size of its impact: Risk = Probability x Impact.

Types (categories) of project risk

CategoryExamples in a project
Technical riskFaulty design, new or unproven technology, poor geotechnical data, change in specifications
Schedule (time) riskLate site handover, late approvals, slow work, monsoon delay, strikes
Cost riskWrong estimate, price rise of cement, steel and fuel, exchange rate change, variations
Financial riskDelay in payment or loan release, interest rate change, cash-flow shortage
Management / organisational riskPoor planning, weak coordination, lack of skilled staff, unclear responsibility
Contractual / legal riskUnclear contract clauses, disputes, claims, land acquisition and court cases
Political and social riskPolicy change, bandh, local opposition, corruption, compensation conflict
Environmental / natural riskFlood, landslide, earthquake, adverse weather, environmental clearance problems
Safety and health riskAccidents, collapse, health hazards at site
Market / commercial riskFall in demand, change in tariff, competition, supplier failure

Other classifications

  • By nature: pure risk (only loss is possible, e.g. fire, accident, flood) and speculative / business risk (gain or loss is possible, e.g. price change, market demand).
  • By source: internal risk (within the control of the project team: estimate, design, management, labour, equipment) and external risk (outside its control: government policy, weather, inflation, market, law).
  • By effect: negative risk (threat) and positive risk (opportunity).
  • By knowledge: known risks (identified, so responses can be planned and covered by a contingency reserve) and unknown risks (cannot be foreseen, so they are covered by a management reserve).

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