How to effectively implement the Last Planner System® on a construction project?

Last Planner System® (LPS) is one of the key tools in Lean Construction, which significantly improves the planning and execution of construction work. Its goal is to increase the predictability and efficiency of work through better coordination of execution teams and the elimination of waste. So how can LPS be implemented on site step by step?

Step 1: Preparation and engagement of the team

Without proper preparation, LPS may be seen as just another "bureaucratic system" rather than a tool for streamlining work. Key activities at this stage:

Team education

Goal: To make the team aware of what LPS is, the benefits it brings, and why it is worth implementing.

• Training for the project team (contract manager, site manager, work supervisors, engineers, foremen, team leaders, subcontractors) – explaining what LPS is, outlining the stages of planning, and demonstrating what daily work in the system looks like.
• Explanation of benefits – reduction in downtime, improved coordination, lower risk of delays, increased predictability.
• Emphasizing the role of execution teams – they are the ones who plan, not just management.

Defining the rules of engagement

Goal: To establish common rules for operating within LPS.

• Identification of meeting participants – determining who is responsible for planning at various levels (e.g., engineers, work supervisors, subcontractors).
• Setting a meeting schedule (weekly planning, daily briefings).
• Defining the meeting location – preferably close to the construction site, near the LPS board.
• Creating clear forms for recording plans, commitments, and issues.

Step 2: Long-Term Planning (Master Plan)

The Master Plan is the strategic schedule for the entire project – it is not very detailed, but it sets out the key milestones.

Creating a Master Plan

Goal: To establish the overall project execution path.

• Identification of key milestones (e.g., completion of foundations, structural frame, acceptance of installations).
• Identification of dependencies between stages (e.g., installations can only begin after the partition walls are completed).
• Setting target deadlines for each milestone.

Verification of the Master Plan's Feasibility

Goal: To check if the Master Plan is realistic.

• Analysis of resource availability (materials, equipment, workforce).
• Identification of potential risks and bottlenecks.
• Incorporation of time buffers where there is a risk of delays.

Step 3: Phase Planning

Phase planning is an intermediate stage between the Master Plan and medium-term planning, which focuses on the detailed development of individual phases of the project.

Conducting Phase Planning

Goal: To plan the subsequent project phases in detail based on the milestones from the Master Plan.

• Utilizing the pull planning method – starting from the final milestone of the phase, the team collaboratively determines the necessary steps in reverse to achieve it.
• Identification of key tasks and their sequence within the given phase.
• Establishing checkpoints and completion criteria for individual tasks.

Coordination Between Teams

Goal: To ensure smooth cooperation between different teams and disciplines.

• Establishing clear hand-off points between teams.
• Defining requirements and expectations for the deliverables provided by each team.
• Identifying potential conflicts and resolving them during the planning phase.

Step 4: Medium-term Planning (Lookahead Plan – 6 Weeks Ahead)

The Lookahead Plan serves as a bridge between the Master Plan and the actual work on the construction site. It allows for detecting and eliminating obstacles before they affect the schedule.

Creating a 6-Week Plan

Goal: To check if the upcoming tasks are ready for execution.

• Extracting tasks for the next 6 weeks from the Master Plan.
• Dividing large tasks into smaller stages that can realistically be completed within a given week.

Task Readiness Assessment

Goal: To identify obstacles before they affect the schedule.

• Do we have approved design documentation?
• Are materials available on time?
• Are there conflicts between the work of different crews?
• Is the necessary equipment and tools available?

If any task does not meet the above criteria, corrective measures must be taken!

Step 5: Weekly Planning (Weekly Work Plan)

The weekly plan is the most important element of the LPS – this is where teams commit to executing specific tasks.

Weekly Planning Meeting

Goal: To determine the specific tasks to be executed in the upcoming week.

• Each team declares which tasks they will complete during the week.
• Determining who will do what and when.
• Verifying that all conditions for execution are met (materials, equipment, documentation).

Visualization of the Plan

Goal: To ensure clear communication.

• Planning board – placing the weekly plan in a visible location.
• Colorful sticky notes – different colors for different trades to facilitate reading the plan.
• Clear division by workdays – specifying exactly what is to be done on Monday, Tuesday, etc.

Step 6: Daily Control and Quick Reactions

Daily meetings allow for on-the-spot problem-solving and ensure smooth workflow.

Daily Huddles

Goal: To ensure that everything is proceeding according to the plan.

• A meeting at a fixed time (e.g., 7:00 AM, lasting 10-15 minutes).
• Each team reports what was accomplished yesterday and what is planned for today.
• Identification of new obstacles and their prompt removal.

Step 7: Analysis and Improvement (PPC and Root Cause Analysis)

The final step involves analyzing why certain tasks were not completed and how to avoid the same mistakes in the future.

Measurement of PPC (Percent Plan Complete)

Goal: To check how effectively we are executing the plans.

• Calculating the percentage of tasks completed relative to the plan (e.g., 8 out of 10 tasks = 80% PPC).
• Analyzing the causes of unmet tasks (e.g., lack of materials, project changes).
• Implementing corrective measures.

Conclusions and Improvements

Goal: To eliminate recurring problems.

• Identifying systemic issues (e.g., chronic delivery delays).
• Introducing adjustments in planning and processes.

Benefits of Implementing the Last Planner System®

• Greater predictability – better control over the schedule.
• Fewer downtimes – elimination of unnecessary waiting and organizational chaos.
• Better coordination – improved collaboration among teams.
• Faster problem response – thanks to daily huddles and the analysis of delay causes.
• Reduced stress – instead of firefighting, we prevent issues in advance.

Risks and Challenges

• Resistance to change – employees may be accustomed to traditional, hierarchical planning.
• Lack of consistency – if weekly planning is not conducted systematically, the entire system will not function.
• Lack of team engagement – it is crucial that foremen and site managers actively participate in planning, not just managers.
• Misinterpretation of LPS – it is not about bureaucracy and additional reports, but about more effective planning and eliminating waste.

Conclusion

Implementing the Last Planner System® is a process that requires a change in approach to planning. The key to success is to involve the executive teams, be systematic in meetings and consistent in analysing problems. If approached diligently, the results will be noticeable very quickly - less chaos, greater efficiency and better cooperation on site. Want to implement LPS on your project? Start by training your team and consistently implement the next steps - the results will surprise you