The sequence of tasks that directly controls a project's completion date. Delays to any critical path activity push the whole project's finish date back. Subcontractors on critical path work face tighter scrutiny and stronger pressure to meet scheduled milestones.
Critical Path
Related Terms
GPR (Ground-penetrating Radar)
IndustryA non-destructive scanning method that detects buried utilities, pipes, and subsurface anomalies before excavation begins. Subcontractors use GPR to reduce strike risk and meet dig-permit requirements on job sites. Many clients now require GPR clearance as a condition of mobilisation.
Pylon
IndustryA tall structural tower used to support overhead power lines, pipelines, or signage on job sites. Subcontractors may work near pylons during civil, electrical, or pipeline installation scopes. Always verify exclusion zones before mobilising equipment.
In-Situ Repair
IndustryFixing or restoring equipment and structures at their installed location, without removal or shutdown. Subcontractors performing in-situ work often command premium rates due to specialised techniques and confined-space conditions. Scope clarity upfront is critical, as discovered defects can significantly expand the job.
Multi-Well Pad
IndustryA single surface location where multiple wells are drilled and completed in sequence. For subcontractors, this means extended site presence, higher mobilisation value, and repeated service cycles from one location. Scheduling and crew continuity are critical to securing ongoing work across the pad.
Electrohydraulic (eh) Control System
IndustryA control system combining electrical signals and hydraulic power to operate valves, actuators, and process equipment. Subcontractors working on commissioning or maintenance must be qualified to work on both electrical and hydraulic components. Specialised certification and intrinsically safe tools are typically required on-site.
Hydroblasting
IndustryHigh-pressure water jetting used to clean, strip, or cut surfaces on industrial equipment and structures. Subcontractors typically require specialised certification and equipment to bid this scope. It is common in tank cleaning, pipeline maintenance, and surface prep work.
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