Site Logistics Plan
The drawing-and-narrative package that shows how a construction site will physically operate — access, deliveries, laydown, cranes, welfare, and traffic — through each major phase of the works.
Definition
A Site Logistics Plan is the set of drawings and supporting text that describes how the physical site will function during construction. It shows gate positions, haul routes, crane locations and radii, laydown areas, welfare units, security, drainage, temporary services, pedestrian segregation, and how all of these evolve across phases. On a congested urban site, the logistics plan is often a bigger constraint on the programme than the design itself.
What Sits Inside
- Site access and egress — including swept-path analysis for the largest vehicles.
- Traffic management plan and interface with public highways.
- Crane locations, radii, and airspace overlap studies.
- Laydown zones by trade, sized to the delivery frequency.
- Welfare, offices, drying rooms — sized for peak headcount.
- Temporary services — power, water, comms, drainage.
- Hoarding, gates, security cameras, and signage.
- Fire, first-aid, and emergency assembly points.
- Phasing overlays — the plan for month 2 is not the plan for month 14.
Why It Matters
Programmes fail on logistics more often than on design. The critical path can be flawless on paper and impossible in reality if two subcontractors need the same laydown zone in the same week or the tower crane can't reach the far corner without swinging over a live rail line. The logistics plan is where those conflicts get flushed out before they become weekly progress-meeting arguments.
Real-World Example
On a mixed-use tower in central Manchester, the initial logistics plan assumed a single tower crane centred on the podium. Steel erection sequencing then required a second crane for two months. The revised plan overlaid the two crane radii, identified a 14° arc of oversail into a neighbouring property, secured a temporary oversail licence, and re-sequenced the deliveries so the second crane was demobilised before the neighbouring building's roof works began. Without the drawing, the conflict would have surfaced the week the second crane arrived on a low-loader — a very expensive time to find out.
Practical Lessons Learned
- Draw it, don't describe it. A plan you cannot show on a single sheet is a plan nobody uses.
- Phase it. Sub-structure, superstructure, envelope, fit-out and commissioning each need their own layout.
- Size laydown by turnover, not by wish-list. A trade delivering weekly needs far less area than one delivering monthly.
- Walk the plan before you finalise it. A 20-minute site walk reveals things no plan-view drawing shows.
- Own the neighbours. Oversail, noise, dust, and delivery windows are negotiated once, not weekly.
Common Mistakes
- A single logistics drawing that never gets updated as the site evolves.
- Ignoring the delivery vehicle envelope until the first 18-tonne rigid arrives and can't turn.
- Undersized welfare that gets overrun the first time headcount spikes.
- Crane radii drawn without checking oversail into neighbouring airspace.
- Emergency assembly points located inside the very zone the emergency evacuates from.
- No pedestrian segregation — a fatality waiting for a moment of inattention.
- Site security designed around the office day, not the 24/7 reality.
Expert Tips
- Overlay the programme. When a trade appears on the schedule, its laydown, hoist slot, and welfare demand must appear on the logistics plan for the same period.
- Design the exit. The plan for demobilisation is almost always the last one drawn and the first one needed.
- Book the hoist. A shared hoist without a booking system becomes a bottleneck by week three.
- Colour code by trade. On a busy site, colour is the fastest form of communication.
- Keep the drawing current. A logistics plan dated six months ago is fiction, and everyone on the site knows it.
Key Takeaways
- Logistics is where paper programmes meet physical reality.
- The plan is a set of phased drawings, not a single static layout.
- Laydown, hoist, crane radius, welfare, and traffic conflicts should be resolved on paper, not on the day.
- Update as the site evolves; a stale plan is worse than none.
- Walk the plan before you finalise, and again whenever anything material changes.
Related Concepts
Interlocks with Just-In-Time Delivery, Last Planner System, Constructability Review, and Handover Management. Sample logistics drawings at PMMilestone.org.
Frequently Asked Questions
What is a site logistics plan?
A set of drawings and narrative describing how the construction site physically operates — access, cranes, laydown, welfare, traffic, security — through each phase of the works.Who is responsible for the logistics plan?
The principal contractor's construction manager, usually working with a temporary works engineer and the site HSE lead. Subcontractors feed in their space and delivery requirements; the principal contractor integrates them.How often should the logistics plan be updated?
At every major phase transition — sub-structure to superstructure, superstructure to envelope, envelope to fit-out — and any time a material change occurs on site. On a fast-moving project that can mean monthly.Is a logistics plan the same as a traffic management plan?
Traffic management is a subset. The logistics plan also covers cranes, laydown, hoist, welfare, security, temporary services and phasing. Traffic management is one drawing inside the wider package.How much detail should the plan include?
Enough that a new subcontractor arriving on site can find their laydown, gate, welfare and hoist without asking. Beyond that you are drawing for the drawing's sake.What is the most common failure?
Not updating the plan as the site evolves. A logistics drawing that is six months out of date generates more confusion than it prevents.Does BIM help?
Yes, particularly for oversail, crane radius, and swept-path checks on congested urban sites. The 3D model catches conflicts that plan-view drawings miss.What is a common misconception about Site Logistics Plan?
That the topic is well-defined across all references. In practice, definitions vary between PMBOK, PRINCE2, AACE and ISO 21500 — this entry uses the definition most aligned with field practice on capital projects, and flags where the standards diverge.Which related encyclopedia entries should I read alongside Site Logistics Plan?
Read Earned Value Management, Critical Path Method and the DCMA 14-point assessment next. The full A–Z is available in the PMMilestone Encyclopedia, and quick one-line definitions live in the PM Glossary on the flagship platform.How does Dr. Hassan Eliwa's research treat Site Logistics Plan?
Dr. Hassan Eliwa's research focuses on owner-side project controls, schedule integrity and forensic delay analysis on capital construction and power programmes. Site Logistics Plan is treated through that lens — what a planning or controls engineer is expected to do with it on a live project, not its textbook definition alone. See the full research library at PMMilestone Research Articles.How is Site Logistics Plan defined on PMMilestone Research & Insights?
The drawing-and-narrative package that shows how a construction site will physically operate — access, deliveries, laydown, cranes, welfare, and traffic — through each major phase of the works. For the full treatment, see the definition, principles, applications and related entries above — every encyclopedia entry follows the same research-grade structure.
People also ask
Follow-up questions practitioners search for next — each one points to the calculator, template or reference entry that answers it.
Which book goes deeper than this entry?
Practitioner field handbooks with worked numerical examples. Books & Publications ↗
Which calculator on PMMilestone.org applies here?
The integrated EVM workbook covers most cost-schedule diagnostics. EVM Calculator ↗
Where is this in the glossary?
Quick-lookup definitions across 1,200+ PM terms. PM Glossary on PMMilestone.org ↗
Which learning track covers this end-to-end?
Structured tracks from beginner planner to programme controls director. Project Controls Academy ↗
Related Entries
How to Become a Senior Planning Engineer in Large Construction Projects
Why senior planners walk the site logistics plan before signing off any programme — and the practical clashes that repeat across projects.
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- Letter RRFI Management
The disciplined tracking of Requests for Information — the formal channel through which contractors ask designers to clarify, correct, or resolve ambiguities in the construction documents.
Further reading on PMMilestone.org
Curated companion resources hosted on the flagship platform, PMMilestone.org.
- For practitioners who want to go deeper, the Project Controls Academy.
- Engineers researching this topic typically continue with the Schedule Health Checker.
- A practical companion to this entry is the Failure Database.
- Closely related on the flagship platform is the Learning Tracks.
- Useful alongside this article is the Books & Publications.
- Many readers follow this up with the Risk Register Template.
- Project teams often pair this with the PMMilestone.org knowledge hub.