Here is a professional and practical SOP for the T-C-Q-S System:
SOP: T-C-Q-S System
(Time / Cost / Quality / Safety)
1. Purpose
To control and improve project performance by managing the four most important construction factors:
- T = Time
- C = Cost
- Q = Quality
- S = Safety
This system helps the company finish work:
- On time
- Within budget
- At the required quality
- Without accidents
2. Objective
The objective of the T-C-Q-S System is to:
- complete the project according to schedule
- control spending and avoid waste
- ensure work meets drawings, specifications, and standards
- protect workers, visitors, and property from harm
3. Scope
This SOP applies to:
- project manager
- site engineer
- site supervisor
- quantity surveyor
- procurement team
- safety officer
- foreman
- subcontractors
It applies from project start to project completion.
4. Definitions
Time
Managing project duration, activity sequence, deadlines, and progress.
Cost
Managing budget, material cost, labor cost, equipment cost, and variations.
Quality
Ensuring work is completed according to approved drawings, specifications, and standards.
Safety
Ensuring safe working conditions, safe behavior, and compliance with safety rules.
5. Main Principle of T-C-Q-S
All 4 elements must work together.
- If you push time too hard, quality may drop.
- If you cut cost too much, safety may suffer.
- If quality is ignored, rework increases cost and delays time.
- If safety is weak, accidents can stop the project and damage reputation.
Core Rule:
Good project control = Balance of Time + Cost + Quality + Safety
6. Responsibilities
6.1 Project Manager
- lead the full T-C-Q-S system
- review project status weekly
- make decisions when problems happen
- coordinate all departments
6.2 Site Engineer
- monitor work progress
- check technical quality on site
- report delay, quality issue, and site risk
6.3 Site Supervisor / Foreman
- control daily site activities
- ensure workers follow plan and method
- enforce safety and workmanship
6.4 Quantity Surveyor / Cost Controller
- track budget and actual spending
- monitor BOQ quantities and variations
- prepare cost reports
6.5 Safety Officer
- inspect safety conditions
- train workers on safe work practices
- report unsafe acts and unsafe conditions
6.6 Procurement Team
- purchase materials on time
- control material cost and quality
- coordinate delivery schedule with site
7. SOP Procedure
7.1 TIME CONTROL SYSTEM
Purpose:
To ensure the project finishes on schedule.
Procedures:
- Prepare master schedule before project starts.
- Break down work into:
- monthly plan
- weekly plan
- daily targets
- add labor
- adjust sequence
- extend working hours if needed
- improve coordination
Time Control Tools:
- master schedule
- look-ahead schedule
- daily work plan
- weekly progress report
- delay log
KPI for Time:
- planned % vs actual %
- number of delayed activities
- recovery actions completed
- milestone achievement rate
7.2 COST CONTROL SYSTEM
Purpose:
To keep the project within approved budget.
Procedures:
- Prepare project budget before execution.
- Separate cost into:
- labor
- material
- equipment
- subcontract
- overhead
Cost Control Tools:
- project budget sheet
- purchase request
- material usage record
- labor cost report
- variation order log
- monthly cost report
KPI for Cost:
- budget vs actual cost
- material waste %
- labor productivity
- number/value of variation orders
- forecast final cost
7.3 QUALITY CONTROL SYSTEM
Purpose:
To ensure the work meets required standards and client expectations.
Procedures:
- Review drawings and specifications before work starts.
- Explain correct method to workers before execution.
- Inspect materials before installation.
- Check workmanship during and after work.
- Use checklists for each activity.
- Stop and correct defective work immediately.
- Record non-conformance and corrective action.
- Conduct inspections before covering hidden work.
- Obtain approval from consultant/client where required.
Quality Control Focus:
- dimensions
- level and alignment
- material quality
- workmanship
- compliance with drawing
- testing results
Quality Tools:
- inspection checklist
- method statement
- material approval record
- mock-up approval
- snag list / punch list
- non-conformance report (NCR)
KPI for Quality:
- number of defects
- number of rework cases
- inspection pass rate
- client complaints
- NCR closure rate
7.4 SAFETY CONTROL SYSTEM
Purpose:
To prevent injury, accident, damage, and unsafe behavior.
Procedures:
- Conduct site safety induction before workers start.
- Identify hazards before work begins.
- Provide PPE:
- helmet
- safety shoes
- gloves
- vest
- goggles
Safety Focus:
- work at height
- electricity
- lifting operations
- excavation
- falling objects
- housekeeping
- fire prevention
- PPE compliance
Safety Tools:
- safety induction form
- toolbox talk record
- PPE checklist
- accident report
- near-miss report
- safety inspection checklist
KPI for Safety:
- number of accidents
- near-miss cases
- PPE compliance rate
- unsafe act reports
- safety training attendance
8. Daily T-C-Q-S Control Routine
Every day, site management should check these 4 questions:
Time
- Are we on schedule today?
- Which activity is delayed?
- What action will recover delay?
Cost
- Are materials being wasted?
- Is labor productivity acceptable?
- Any unexpected expense today?
Quality
- Is the work correct according to drawing?
- Any defect or rework?
- Was inspection done before next step?
Safety
- Is the work area safe?
- Are workers using PPE?
- Any unsafe condition or risky action?
9. Weekly T-C-Q-S Meeting
A weekly meeting should be held with site team.
Agenda:
- progress review
- delay and recovery plan
- cost update
- quality issues and rework
- safety incidents and corrective actions
- material and manpower planning
- action plan for next week
Participants:
- project manager
- site engineer
- supervisor
- QS
- procurement
- safety officer
10. Reporting Format
Daily Report
Should include:
- work completed
- manpower
- equipment
- material received
- quality issues
- safety issues
- weather
- delay/problem
Weekly Report
Should include:
- planned vs actual progress
- budget summary
- quality findings
- safety observations
- major risks
- action plan
Monthly Report
Should include:
- project performance summary
- major delays
- cost status
- quality trend
- safety performance
- client issues
- forecast for next month
11. Corrective Action Rule
When any T-C-Q-S issue is found:
- identify the problem
- find the root cause
- assign responsible person
- define corrective action
- set deadline
- recheck result
- close the issue
Example:
- Problem: Wall plaster work delayed
- Cause: Not enough workers
- Action: Add 2 workers and revise area sequence
- Responsible: Site supervisor
- Deadline: 3 days
12. Escalation Rule
Issues must be escalated when:
- delay affects milestone
- cost exceeds budget limit
- major defect is found
- accident or serious near miss happens
- subcontractor performance is poor
- client complaint is serious
Escalation Path:
Supervisor → Site Engineer → Project Manager → Company Director
13. Key Success Rules
- plan before work starts
- inspect while work is happening
- solve problems early
- record everything
- communicate clearly
- never sacrifice safety for speed
- never hide cost problems
- never accept poor quality
- balance all 4 factors together
14. Simple T-C-Q-S Table
| Element | Main Question | Main Target |
|---|---|---|
| Time | Are we on schedule? | Finish on time |
| Cost | Are we within budget? | Protect profit |
| Quality | Is the work correct? | Meet standards |
| Safety | Is the work safe? | Zero accidents |
15. Conclusion
The T-C-Q-S System is the heart of professional project control.
A strong contractor does not only build fast.
A strong contractor builds:
- on time
- with profit
- with good quality
- with safety
That is what makes a company professional and trusted.
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