Master Planning (Master Plan)

It is the highest level of planning, which defines the critical milestones of the project, such as start and end dates of major phases, deliveries of key materials, and necessary permits. This plan serves as a reference for lower levels and must be reviewed periodically to adjust to changes in the environment.

In complex projects, the Master Plan can include Gantt charts, PERT networks or agile methodologies such as Scrum adapted to construction, always prioritizing simplicity and clarity.

Intermediate Planning (Lookahead Planning)

This level, with a horizon of 3 to 12 weeks, focuses on converting master activities into executable tasks. It includes activities such as: breakdown of milestones into work packages, identification of constraints, allocation of resources and logical sequence of activities.

Intermediate planning is crucial to avoid bottlenecks, as it allows you to anticipate logistical, labor or material problems, and take preventive measures. The “Constraints Filter” method is commonly used to prioritize feasible activities.

Weekly Planning (Weekly Work Planning)

At this level, the specific tasks to be executed in the next week are defined, assigned to teams or individuals. Each task must meet the “Well-Defined Task” (TB) criteria, which include: clear description, available resources, resolved constraints, and assigned responsible parties.

Weekly planning is carried out in collaborative meetings where the Last Planners participate, such as foremen, supervisors and team leaders. These meetings encourage the autonomy and commitment of those involved.

Percentage of Plan Completed (PPC)

PPC is a key performance indicator that measures the percentage of planned tasks in the week that were completed as planned. A high PPC (usually above 80%) indicates effective planning and a good level of commitment.

When the PPC is low, the root causes are analyzed using techniques such as the “Ishikawa Diagram” or the “5 Whys”, and corrective actions are implemented. This indicator is essential for continuous learning in the project.

Coordination meetings

Meetings are pillars of the LPS and are classified as: intermediate planning meetings (every 1-2 weeks), weekly planning meetings and retrospective meetings (to evaluate the PPC and adjust processes).

These meetings should be brief (maximum 30 minutes), focused on problem resolution and with key participants. The use of visual tools such as Kanban boards or tracking whiteboards is recommended to facilitate communication.

Improved productivity

Collaborative planning and focusing on well-defined tasks reduces downtime and delays. Studies show that the implementation of LPS can increase productivity between 20% and 40%, depending on the context of the project.

By minimizing improvisation and last-minute changes, teams can focus on executing tasks efficiently, with less stress and greater job satisfaction.

Waste reduction

LPS eliminates waste such as overprocessing, excessive material inventory, waiting time, and unnecessary movement of equipment and personnel. This is achieved by optimizing workflows and synchronizing activities.

The application of lean tools, such as "Just-in-Time" in the delivery of materials, contributes to reducing costs and improving operational efficiency.

Greater reliability in commitments

By being based on the active participation of the latest planners, the commitments made (in terms of deadlines and quality) are more realistic and achievable. This reduces the gap between what was planned and what was executed, improving the reputation of construction companies.

The constant measurement of the PPC allows us to identify areas for improvement and adjust expectations, avoiding unfulfillable promises from the beginning of the project.

Promotion of lean culture

The implementation of the LPS promotes values ​​such as transparency, collaboration and continuous improvement, aligning with the principles of the Lean philosophy. This not only benefits the current project, but lays the foundation for the adoption of other lean tools in the organization.

Teams that adopt LPS develop skills in problem solving, teamwork, and change management, making them more adaptable to dynamic environments.

Steps for implementation

1. Team training: Everyone involved must receive training in the principles and tools of the LPS, including roles, responsibilities and planning methodologies.

2. Initial diagnosis: Evaluate the current state of the project in terms of planning, communication and constraint management. Identify critical areas that require improvement.

3. Definition of roles: Assign key roles such as "Last Planner", system facilitator and support team for constraint management.

4. Establishment of meetings: Schedule periodic intermediate, weekly and retrospective planning meetings, ensuring the participation of all actors.

5. Use of visual tools: Implement tracking boards, Kanban boards or specialized software to manage plans, constraints and metrics such as PPC.

6. Monitoring and adjustment: Constantly evaluate performance using indicators such as the PPC, and make adjustments to the processes according to the results obtained.

Complementary tools

To enhance the results of LPS, it is recommended to combine it with tools such as: Last Planner System Software (e.g. LPS Cloud, Takt Tools), agile methodologies (Scrum in construction), visual management systems (5S), and problem solving techniques (PDCA, 8D).

Integration with BIM (Building Information Modeling) allows more precise planning and early detection of interferences, improving coordination between disciplines.

Common challenges and solutions

Resistance to change: Teams accustomed to traditional methods may be skeptical. The solution is to demonstrate the benefits through small project pilots and ongoing training.

Lack of commitment: If the last planners are not involved, the system loses effectiveness. It is recommended to involve them from the design of the plan and recognize their contribution.

Meeting overload: Poorly structured meetings can be counterproductive. They should be brief, with clear agendas and focused on action.

Lack of historical data: For effective planning, records from previous projects are needed. It is suggested to implement data collection systems from the beginning.

Civil construction sector

In road infrastructure projects, such as highways or bridges, the implementation of LPS has reduced execution times by 25% and costs by 15%, thanks to the optimization of resources and the elimination of bottlenecks. For example, in the construction of the Autopista del Sol in Peru, an average PPC of 85% was achieved, exceeding the sector standard.

In construction, construction companies have reported improvements in the delivery of residential projects, with reductions of up to 30% in delays and greater customer satisfaction. Collaborative planning allowed activities to be synchronized between structures, installations and finishes.

Oil and mining industry

The LPS originated in this sector, where complexity and risks require meticulous planning. In oil platform projects, a 40% reduction in maintenance downtime was achieved, thanks to the anticipation of restrictions and the efficient allocation of resources.

In mining, the methodology has been key to managing site expansion projects, where coordination between multiple contractors and materials logistics are critical. Companies like Codelco have reported improvements in productivity and safety at their works.

Public sector and civil works

In public works, such as hospitals or schools, the LPS has allowed deadlines and budgets to be met in contexts of high bureaucracy and multiple stakeholders. For example, in the construction of a hospital in Chile, the initial delay was reduced from 50% to 10% through the application of the system.

The transparency generated by the LPS has been valued by supervisory entities, since it facilitates the monitoring of progress and accountability.

Differences with traditional planning

Unlike traditional methods (such as the Gantt chart or the critical path method), which prioritize top-down planning and rigidity, LPS focuses on bottom-up planning, flexibility, and adaptation to real conditions. While traditional methods measure progress in terms of time, LPS does so in terms of fulfilled commitments.

In traditional planning, delays are often transferred between activities, creating a domino effect. The LPS, on the other hand, seeks to resolve problems as they arise, avoiding the spread of delays.

Relationship with other lean methodologies

LPS is complementary to other Lean tools, such as Value Stream Mapping (VSM), which maps value streams to identify waste; 5S, for the organization of work spaces; and the Pull System, which synchronizes demand with production. Together, they form an ecosystem of continuous improvement.

Unlike the Critical Path Method (CPM), which focuses on critical activities, LPS prioritizes the reliability of commitments and the removal of constraints, making it more robust in dynamic environments.

Challenges in adoption

One of the main criticisms of the LPS is that its implementation requires a profound cultural change, which can be difficult in companies with rigid hierarchical structures or resistance to change. Lack of commitment from senior management is a common obstacle.

In addition, collaborative planning demands more time in meetings and coordination, which can be perceived as an additional cost in projects with tight deadlines.

Limitations on small scale projects

On small or short-term projects, LPS implementation may be overkill, as traditional methods (such as simple task lists) may be sufficient. The additional LPS bureaucracy may not justify the benefits in these cases.

However, even on small projects, applying basic LPS principles such as weekly planning and PPC can bring significant improvements.

Integration with emerging technologies

The combination of LPS with technologies such as artificial intelligence (AI) and machine learning is booming. These tools can analyze historical data to predict constraints, optimize activity sequences, and suggest adjustments in real time.

Augmented reality (AR) and digital twins make it possible to simulate construction plans and detect interference before they occur, improving planning accuracy.

Expansion in new sectors

LPS is gaining ground in sectors such as modular construction, prefabrication and infrastructure rehabilitation, where standardization and repeatability are key. Its adaptation to circular economy and sustainability contexts is an area of ​​active research.

In the context of Industry 4.0, LPS integrates with IoT (Internet of Things) to monitor the use of equipment and materials in real time, adjusting plans according to changing conditions.

Standardization and training

Organizations such as the Lean Construction Institute (LCI) and the International Council for Research and Innovation in Building and Construction (CIB) are working on the standardization of LPS methodologies, including professional certifications and implementation guides.

University and technical training in LPS is growing, with academic programs and online courses that seek to professionalize the system's latest planners and facilitators.

Master Planning (Master Plan)

It is the highest level of planning, which defines the critical milestones of the project, such as start and end dates of major phases, deliveries of key materials, and necessary permits. This plan serves as a reference for lower levels and must be reviewed periodically to adjust to changes in the environment.

In complex projects, the Master Plan can include Gantt charts, PERT networks or agile methodologies such as Scrum adapted to construction, always prioritizing simplicity and clarity.

Intermediate Planning (Lookahead Planning)

This level, with a horizon of 3 to 12 weeks, focuses on converting master activities into executable tasks. It includes activities such as: breakdown of milestones into work packages, identification of constraints, allocation of resources and logical sequence of activities.

Intermediate planning is crucial to avoid bottlenecks, as it allows you to anticipate logistical, labor or material problems, and take preventive measures. The “Constraints Filter” method is commonly used to prioritize feasible activities.

Weekly Planning (Weekly Work Planning)

At this level, the specific tasks to be executed in the next week are defined, assigned to teams or individuals. Each task must meet the “Well-Defined Task” (TB) criteria, which include: clear description, available resources, resolved constraints, and assigned responsible parties.

Weekly planning is carried out in collaborative meetings where the Last Planners participate, such as foremen, supervisors and team leaders. These meetings encourage the autonomy and commitment of those involved.

Percentage of Plan Completed (PPC)

PPC is a key performance indicator that measures the percentage of planned tasks in the week that were completed as planned. A high PPC (usually above 80%) indicates effective planning and a good level of commitment.

When the PPC is low, the root causes are analyzed using techniques such as the “Ishikawa Diagram” or the “5 Whys”, and corrective actions are implemented. This indicator is essential for continuous learning in the project.

Coordination meetings

Meetings are pillars of the LPS and are classified as: intermediate planning meetings (every 1-2 weeks), weekly planning meetings and retrospective meetings (to evaluate the PPC and adjust processes).

These meetings should be brief (maximum 30 minutes), focused on problem resolution and with key participants. The use of visual tools such as Kanban boards or tracking whiteboards is recommended to facilitate communication.

Improved productivity

Collaborative planning and focusing on well-defined tasks reduces downtime and delays. Studies show that the implementation of LPS can increase productivity between 20% and 40%, depending on the context of the project.

By minimizing improvisation and last-minute changes, teams can focus on executing tasks efficiently, with less stress and greater job satisfaction.

Waste reduction

LPS eliminates waste such as overprocessing, excessive material inventory, waiting time, and unnecessary movement of equipment and personnel. This is achieved by optimizing workflows and synchronizing activities.

The application of lean tools, such as "Just-in-Time" in the delivery of materials, contributes to reducing costs and improving operational efficiency.

Greater reliability in commitments

By being based on the active participation of the latest planners, the commitments made (in terms of deadlines and quality) are more realistic and achievable. This reduces the gap between what was planned and what was executed, improving the reputation of construction companies.

The constant measurement of the PPC allows us to identify areas for improvement and adjust expectations, avoiding unfulfillable promises from the beginning of the project.

Promotion of lean culture

The implementation of the LPS promotes values ​​such as transparency, collaboration and continuous improvement, aligning with the principles of the Lean philosophy. This not only benefits the current project, but lays the foundation for the adoption of other lean tools in the organization.

Teams that adopt LPS develop skills in problem solving, teamwork, and change management, making them more adaptable to dynamic environments.

Steps for implementation

1. Team training: Everyone involved must receive training in the principles and tools of the LPS, including roles, responsibilities and planning methodologies.

2. Initial diagnosis: Evaluate the current state of the project in terms of planning, communication and constraint management. Identify critical areas that require improvement.

3. Definition of roles: Assign key roles such as "Last Planner", system facilitator and support team for constraint management.

4. Establishment of meetings: Schedule periodic intermediate, weekly and retrospective planning meetings, ensuring the participation of all actors.

5. Use of visual tools: Implement tracking boards, Kanban boards or specialized software to manage plans, constraints and metrics such as PPC.

6. Monitoring and adjustment: Constantly evaluate performance using indicators such as the PPC, and make adjustments to the processes according to the results obtained.

Complementary tools

To enhance the results of LPS, it is recommended to combine it with tools such as: Last Planner System Software (e.g. LPS Cloud, Takt Tools), agile methodologies (Scrum in construction), visual management systems (5S), and problem solving techniques (PDCA, 8D).

Integration with BIM (Building Information Modeling) allows more precise planning and early detection of interferences, improving coordination between disciplines.

Common challenges and solutions

Resistance to change: Teams accustomed to traditional methods may be skeptical. The solution is to demonstrate the benefits through small project pilots and ongoing training.

Lack of commitment: If the last planners are not involved, the system loses effectiveness. It is recommended to involve them from the design of the plan and recognize their contribution.

Meeting overload: Poorly structured meetings can be counterproductive. They should be brief, with clear agendas and focused on action.

Lack of historical data: For effective planning, records from previous projects are needed. It is suggested to implement data collection systems from the beginning.

Civil construction sector

In road infrastructure projects, such as highways or bridges, the implementation of LPS has reduced execution times by 25% and costs by 15%, thanks to the optimization of resources and the elimination of bottlenecks. For example, in the construction of the Autopista del Sol in Peru, an average PPC of 85% was achieved, exceeding the sector standard.

In construction, construction companies have reported improvements in the delivery of residential projects, with reductions of up to 30% in delays and greater customer satisfaction. Collaborative planning allowed activities to be synchronized between structures, installations and finishes.

Oil and mining industry

The LPS originated in this sector, where complexity and risks require meticulous planning. In oil platform projects, a 40% reduction in maintenance downtime was achieved, thanks to the anticipation of restrictions and the efficient allocation of resources.

In mining, the methodology has been key to managing site expansion projects, where coordination between multiple contractors and materials logistics are critical. Companies like Codelco have reported improvements in productivity and safety at their works.

Public sector and civil works

In public works, such as hospitals or schools, the LPS has allowed deadlines and budgets to be met in contexts of high bureaucracy and multiple stakeholders. For example, in the construction of a hospital in Chile, the initial delay was reduced from 50% to 10% through the application of the system.

The transparency generated by the LPS has been valued by supervisory entities, since it facilitates the monitoring of progress and accountability.

Differences with traditional planning

Unlike traditional methods (such as the Gantt chart or the critical path method), which prioritize top-down planning and rigidity, LPS focuses on bottom-up planning, flexibility, and adaptation to real conditions. While traditional methods measure progress in terms of time, LPS does so in terms of fulfilled commitments.

In traditional planning, delays are often transferred between activities, creating a domino effect. The LPS, on the other hand, seeks to resolve problems as they arise, avoiding the spread of delays.

Relationship with other lean methodologies

LPS is complementary to other Lean tools, such as Value Stream Mapping (VSM), which maps value streams to identify waste; 5S, for the organization of work spaces; and the Pull System, which synchronizes demand with production. Together, they form an ecosystem of continuous improvement.

Unlike the Critical Path Method (CPM), which focuses on critical activities, LPS prioritizes the reliability of commitments and the removal of constraints, making it more robust in dynamic environments.

Challenges in adoption

One of the main criticisms of the LPS is that its implementation requires a profound cultural change, which can be difficult in companies with rigid hierarchical structures or resistance to change. Lack of commitment from senior management is a common obstacle.

In addition, collaborative planning demands more time in meetings and coordination, which can be perceived as an additional cost in projects with tight deadlines.

Limitations on small scale projects

On small or short-term projects, LPS implementation may be overkill, as traditional methods (such as simple task lists) may be sufficient. The additional LPS bureaucracy may not justify the benefits in these cases.

However, even on small projects, applying basic LPS principles such as weekly planning and PPC can bring significant improvements.

Integration with emerging technologies

The combination of LPS with technologies such as artificial intelligence (AI) and machine learning is booming. These tools can analyze historical data to predict constraints, optimize activity sequences, and suggest adjustments in real time.

Augmented reality (AR) and digital twins make it possible to simulate construction plans and detect interference before they occur, improving planning accuracy.

Expansion in new sectors

LPS is gaining ground in sectors such as modular construction, prefabrication and infrastructure rehabilitation, where standardization and repeatability are key. Its adaptation to circular economy and sustainability contexts is an area of ​​active research.

In the context of Industry 4.0, LPS integrates with IoT (Internet of Things) to monitor the use of equipment and materials in real time, adjusting plans according to changing conditions.

Standardization and training

Organizations such as the Lean Construction Institute (LCI) and the International Council for Research and Innovation in Building and Construction (CIB) are working on the standardization of LPS methodologies, including professional certifications and implementation guides.

University and technical training in LPS is growing, with academic programs and online courses that seek to professionalize the system's latest planners and facilitators.