The study of how the body's internal clock affects alertness, performance, and safety during shift work. Subcontractors use it to design smarter rotation schedules that reduce fatigue-related incidents. Regulators increasingly reference circadian principles in hours-of-service and fatigue management requirements.
Circadian Science
Related Terms
Rotational Worker
WorkforceA field worker employed on a fixed schedule of alternating work and rest periods, such as 14 days on and 14 days off. Subcontractors must account for rotation cycles when planning crew mobilisation and maintaining consistent headcount on site.
Workforce Accommodation
WorkforceTemporary housing arranged for field crews working at remote or industrial sites, such as labour camps or modular lodges. For subcontractors, accommodation costs may be billed separately or bundled into contract rates. Confirming who is responsible for these costs before mobilisation prevents disputes.
Churn
WorkforceThe rate at which workers leave and must be replaced within a field crew or subcontractor roster. High churn drives up recruiting and onboarding costs, disrupts project continuity, and strains client relationships.
Planned Labour Percentage
WorkforceThe portion of a project's total budget allocated to labour costs, expressed as a percentage. Subcontractors use it to bid competitively and protect margins. Tracking it against actual labour spend reveals cost overruns early.
IRP (Integrated Resource Plan)
WorkforceA client's long-term plan outlining labour, equipment, and service needs across a project or portfolio. Subcontractors use it to forecast crew deployment and equipment commitments. It helps field service companies align capacity and bids with upcoming work cycles.
Colocation
WorkforceWhen a subcontractor embeds personnel or equipment at a client's site for an extended engagement. This reduces mobilisation costs and improves response time for ongoing work. It is common on large construction or production sites requiring continuous support.
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