How do you apply Just‑In‑Time delivery principles on site?

1. Quantity Surveying: Precise Demand Forecasting

• Material Take‑Offs & Review Cycles• Produce rolling material requirement statements every week• Compare actual consumption vs. forecast to refine next‑week orders

• Buffer Definition• Identify critical items (e.g., M‑25 concrete, structural steel) and set minimum safety stock levels• Use site measurement data to trigger replenishment just before depletion

2. Estimation & Costing: Balancing Carrying vs. Delivery Costs

• Cost Modeling• Quantify inventory carrying costs (space rental, spoilage risk) versus frequent delivery surcharges• Optimize order batch sizes to minimize total lifecycle cost

• Vendor Rate Analysis• Include JIT delivery premiums in your unit‑rate calculations• Use provisional sums for unexpected rush orders in high‑rise or underground works

3. Tendering & Contracts Management: Embedding JIT in Agreements

• Delivery‑Window Clauses• Specify narrow delivery slots tied to installation dates (e.g., “steel delivered within 48 hrs of erection ready notice”)• Include liquidated damages for early/late deliveries that disrupt sequence

• Flexible Supply Agreements• Negotiate call‑off contracts allowing adjustments in quantities up to defined thresholds• Define escalation formulas if material specs or quantities change

4. Billing Engineering: Linking Payments to On‑Time Delivery

• Milestone‑Based Payments• Structure interim bills so 80% is tied to material supply acceptance, 20% to successful incorporation on site

• Retention & Release• Hold back a small retention on each delivery until quality inspections and installation sign‑off are complete• Release retention promptly when JIT scheduling avoids re‑handling costs

5. Planning Engineering: Integrating Procurement into the Master Schedule

• 4D Schedule Coordination• Tie procurement milestones directly into your BIM‑linked Gantt charts• Highlight delivery‑to‑installation lead times for metro traffic constraints

• Rolling‑Wave Procurement• Plan detailed orders only three to four weeks ahead, leaving out further‑out items• Update procurement plans in weekly look‑ahead sessions to reflect site progress

6. Construction Project Management: On‑Site Execution & Communication

• Daily Coordination Huddles• Review next‑day deliveries with site supervisors, storekeepers, and suppliers’ reps• Confirm unloading areas and lifting equipment availability to avoid demurrage

• Material Flow Layout• Designate pull‑zones close to installation fronts rather than large lay‑down yards• Use color‑coded tagging so crews know exactly when to expect—and where to place—each JIT delivery

Master JIT on Metro ProjectsTo excel in JIT delivery and keep large‑scale urban projects running smoothly, build your expertise through:

• Bhadanis Quantity Surveying

• Bhadanis Estimation & Costing

• Bhadanis Billing Engineering

• Bhadanis Tendering & Contracts Management

• Bhadanis Planning Engineering

• Bhadanis Construction Project Management

 How do you apply Just‑In‑Time delivery principles on site?