GRUPO COLABORATIVO I+D+i. Construyendo Excelencia

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2 LEAN SCHEDULING "Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni

3 LEAN SCHEDULING JOSÉ LUIS PONZ TIENDA, PHD, MSCI, MBA, BENG, ARCH ONE STEP FORWARD IN LEAN SCHEDULING & CONSTRUCTION MANAGEMENT

4 LEAN SCHEDULING Why, What, How?

5 WHY?

6 WHY? CONSTRUCTION MANAGEMENT IS DIFFERENT

7 WHY? CONSTRUCTION MANAGEMENT IS CHANGING

8 WHY? CONSTRUCTION MANAGEMENT IS COLLABORATION

9 WHY? CONSTRUCTION MANAGEMENT IS TECHNOLOGY

10 WHY? PM SOFTWARE DON T FIT TO OUR NEEDS

11 WHY? PM SOFTWARE DON T HELP US

12 WHAT?

13 I ALWAYS CHOOSE A LAZY PERSON TO DO A DIFFICULT JOB. BECAUSE, WHAT? HE WILL FIND AN EASY WAY TO DO IT BE LAZY THING CRAZY!!!! BILL GATES

14 WHAT?

15 EVERYTHING SHOULD BE MADE WHAT? AS SIMPLE AS POSSIBLE, BUT NOT SIMPLER ALBERT EINSTEIN

16 EVERY CHILD IS BORN A GENIUS WHAT? ALBERT EINSTEIN

17 WHAT? THE REASON THAT GOD WAS ABLE TO CREATE THE WORLD IN SEVEN DAYS IS THAT HE DIDN'T HAVE TO WORRY ABOUT THE INSTALLED BASE ENZO TORRESI

18 WHAT? SMART SCHEDULING SCHEDULING FOR LAZY PEOPLE

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20 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on PHASES and PROCESSES LPS COMMITMENTS management approach Improved Flow/PDM Algorithms PRODUCTION is the DANCING QUEEN Durations and times are the CONSEQUENCE New treatment of OVERLAPPING Real conditions with FEEDING GPRS Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

21 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on PHASES and PROCESSES LPS COMMITMENTS management approach Improved Flow/PDM Algorithms PRODUCTION is the DANCING QUEEN Durations and times are the CONSEQUENCE New treatment of OVERLAPPING Real conditions with FEEDING GPRS Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

22 DESIGN CRITERIA SHOULD CAN WILL WORK STRUCTURING MASTER & PHASE SCHEDULE LOOK AHEAD SCHEDULE WEEKLY WORK PLAN DONE LEARN & IMPROVE

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24 Portfolio Project Phase Process Activity

25 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms PRODUCTION is the DANCING QUEEN Durations and times are the CONSEQUENCE New treatment of OVERLAPPING Real conditions with FEEDING GPRS Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

26 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT

27 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT

28 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT

29 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT

30 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT

31 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT At least 5 movements

32 15 Activities 22 Relations 3 Processes 2 Flows RESEARCH IN SOFTWARE FOR INNOVATION IN CONSTRUCTION MANAGEMENT TRADICIONAL SENDA PROJECT At least 5 movements 1 movement

33 0 Not editable value 0 Editable value SF 5 0 Critical Drainage Previous Excav. Ph1 SS Excav. Ph2 Reb. Found % k= Diaph.-wall SS Cte. Ph % k= SS Cte. Ph2 Cte. Ph3 60% k= Structure Decks Fl Fl Masonry Fl Paving Fl Facades Ponz-Tienda, Pellicer, Benlloch, Romano. (2015). The Fuzzy Project Scheduling Problem with Minimal Generalized Precedence Relations. Computer- Aided Civil and Infrastructure Engineering. 30: doi: /mice Fl 0 Fl Offices FF % Fl Basements FF % β= Fl 0 Fl 0 Reworks Makespan

34 Scenario 1 ES makespan Table 4 Performance metrics of the example of application RI CI i CV i es 1(0) es 2 es 3(0) Table 5 Compared results for case 1with Primavera P6 Professional V8.2.0 Differences Model Activities Relationships Makespan Optimal Time Floats Fuzzy-GPSP Yes Solution A Primavera No Solution B Primavera Yes 0 0 TF i tf tf Scenario % Scenario 2 Scenario 3 Scenario 4 Scenario % tf 3 0 Scenario 5 Table 6 Compared results for transition from scenario #1 to scenario #5 Model Activities Relationships Makespan # Oper Optimal Differences Time Floats Fuzzy-GPSP Yes Primavera No 48 33

35 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of OVERLAPPING Real conditions with FEEDING GPRS Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

36 Duración x CoeficientedeIntervención Producción JornadadeTrabajo x # Recursos x CoeficientedeIntervención Duración Producción DisponibilidaddeRecursos / día Ponz-Tienda, J.L. Temario asignatura Gerencia proyectos de Construcción de Ingeniería Civil. Universidad de Los Andes.

37 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of Overlapping Real conditions with FEEDING GPRS Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

38 OVERLAPPING

39 COMMERCIAL SOFTWARE

40 NON SPLITTING ALLOWED ALGORITHM SPR

41 STANDARDIZATION OF PRECEDENCE RELATIONSHIPS Ponz-Tienda, J.L. Temario asignatura Gerencia proyectos de Construcción de Ingeniería Civil. Universidad de Los Andes.

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43 NON SPLITTING ALLOWED ALGORITHM

44 NON SPLITTING ALLOWED ALGORITHM

45 SPLITTING ALLOWED ALGORITHM?

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47 AS IT SHOULD BE?

48 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED NON SPLITTING ALLOWED

49 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED OPTIMAL SPLITTING

50 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED DISCRETIONAL SPLITTING

51 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of Overlapping Real conditions with Feeding GPRs Real treatment of CALENDARS METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

52 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED NON SPLITTING ALLOWED

53 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED NON SPLITTING ALLOWED

54 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED NON SPLITTING ALLOWED

55 TRADICIONAL SENDA PROJECT NON SPLITTING ALLOWED NON SPLITTING ALLOWED

56 Lengthening a reverse critical activity The makespan is shortened Shortening a reverse critical activity The makespan is lengthened

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59 Ponz-Tienda, Pellicer, Benlloch, Romano. (2015). The Fuzzy Project Scheduling Problem with Minimal Generalized Precedence Relations. Computer- Aided Civil and Infrastructure Engineering. 30: doi: /mice.12166

60 Ponz-Tienda, Pellicer, Rojas-Quintero, Alarcón. (2015). Integrating Task Fragmentation and Earned Value Method into the Last Planner System using Spreadsheets. 23rd Ann. Conf. of the Int l. Group for Lean Construction, At Perth, Australia

61 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of Overlapping Real conditions with Feeding GPRs Real treatment of Calendars METAHEURISTICS for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

62 TRADICIONAL SENDA PROJECT

63 Case study

64 Case study Duración Placa Día Inicio Fecha Inicio Propuesta Microsoft project Open Project Primavera P6 Primavera P3 CC FF CC FF Sucesoras Predecesoras Spider project Duración Placa Lunes 19/01/ Miercoles 21/01/ Viernes 23/01/ Lunes 19/01/ Miercoles 21/01/ Viernes 23/01/ Lunes 19/01/ Miercoles 21/01/ Viernes 23/01/ Día Inicio Fecha Inicio Propuesta Microsoft project Open Project Primavera P6 Primavera P3 CC FF CC FF Sucesoras Predecesoras Spider project Lunes 19/01/ % 4-27% % % -8 Miercoles 21/01/ % 1-27% % % -16 Viernes 23/01/ % 1-33% % % -13 Lunes 19/01/ % 1 4% 2-14% -7-16% -8-16% -8 Miercoles 21/01/ % -2-18% -9-6% -3 Viernes 23/01/ % 1-14% -7-16% -8-14% -7 Lunes 19/01/ % -5-2% -1-2% -1 Miercoles 21/01/ % -2-8% -4-4% -2 Viernes 23/01/ % -5-4% -2-2% -1

65 Romero & Ponz-Tienda. (2015). Scheduling Multishore Slabs. Patent pending.

66 Romero & Ponz-Tienda. (2015). Scheduling Multishore Slabs. Patent pending.

67 Romero & Ponz-Tienda. (2015). Scheduling Multishore Slabs. Patent pending.

68 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of Overlapping Real conditions with Feeding GPRs Real treatment of Calendars Metaheuristics for resource management Treatment of REAL nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

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72 Ponz-Tienda, Yepes, Pellicer, Moreno-Flores. (2013). Automation in Construction

73 Ponz-Tienda et al. (2015). Publishing pending

74 Ponz-Tienda et al. (2015). Smart prediction of Production rates. Patent pending.

75 Ponz-Tienda et al. (2015). Smart prediction of Production rates. Patent pending.

76 TRADITIONAL APPROACH Traditional hierarchy structure based Activities are the focus People & commitments management are absent Based on traditional CPM / PDM algorithms Production is forgotten Durations and times are the goal Excessive relaxation of overlapping Reverse criticality Mismanagement of calendars Obsolete heuristics for resource management Different natures of resources are not consider BIM interaction more visual than efficient Absent Parametric Cost Databases OUR PROPOSAL Hierarchy structure based on LPS LPS focused on Phases and Processes LPS Commitments management approach Improved Flow/PDM Algorithms Production is the Dancing Queen Durations and times are the Consequence New treatment of Overlapping Real conditions with Feeding GPRs Real treatment of Calendars Metaheuristics for resource management Treatment of Real nature of resources BIM interaction with Dynamic-links Massive use of PCD & BIM with DYNA-LINK

77 ABC/PBC COSTING Cost per Unit consumed Cost per Time in Process Cost per Production Cost per Use

78 PRODUCTION Bottle neck Subordinate Resources Efficient / levelled Consumption Learning curves & Productivity Variable Intensity Resource Constrained problems Resource Leveling Problems

79 SUMMARIZING

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