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CE 366 PROJECT MANAGEMENT AND ECONOMICS Robert G. Batson, Ph.D., P.E. Professor of Construction Engineering The University of Alabama Rbatson@eng.ua.edu. Chapter 6: Production Planning. Production Planning is “ Microplanning ”.
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CE 366PROJECT MANAGEMENT AND ECONOMICSRobert G. Batson, Ph.D., P.E.Professor of Construction EngineeringThe University of AlabamaRbatson@eng.ua.edu
Production Planning is “Microplanning” • Detailed planning of actual operations -- how the activities on the networks or Gantt charts are to be accomplished • Production planning firmly establishes • The construction methods to be used • The assignment of personnel • The movement of material to the workface • The assembly process • Production planning includes • Site layout • Arrangement of utilities • Preparation of storage and prefabrication areas • Establishing vehicle pathways and material flow patterns
Planning Requires Teamwork (See Team Memory Jogger provided) • During bidding, the estimator(s) depended on a small team of experienced personnel with appropriate input from suppliers and subcontractors • During project planning, the planner(s) depended on a larger group of personnel to create the precedence diagram, identify restraints, and estimate activity and lag times • During production planning, the prime contractors, and suppliers develop and commit to detailed plans; also, specialists in personnel, purchasing, transportation, on-site material handling, quality, safety, equipment maintenance, and even security begin to participate
The Importance of Production Planning • Complete, thorough, and detailed planning prior to starting construction is a proven key to successful project completion • The production planning team would review all project documentation available • Understand overall project: the work breakdown structure, the bid and budget, the schedule plan, the site documents, the specifications and drawing, the participating firms and individuals • With specific attention by individuals to aspects of project that pertain to their managerial responsibilities
The Process of Production Planning • Some aspects of the project are already fixed (boundary conditions) and cannot be changed, for various reasons • Other aspects are subject to discussion, redesign or re-planning, and upon approval -- changes are made. This is what the authors mean by “reengineering the project” • Brainstorming is a “team creativity” technique used to elicit improvement ideas in a manner of free association, without criticism or comment -- quantity is emphasized at first, evaluation leading to a team recommendation comes later. • Detailed production planning may be done in one team for small projects or in subteams for larger projects
Support Planning • Site permits and preparation require long lead times • Access to get materials, equipment, and personnel to the site is another early planning concern • Roads and bridges • Utility lines • Utilities • Water, sewer, gas electricity • Rail sidings and truck docking facilities • Environmental protection, fuel storage, waste disposal • Site Layout Drawing (Figure 6.1) • Number, size, location of buildings • Fence-lines; exit/entry control points • Roads, parking, traffic and walking patterns, signage • Specialized, but unsheltered areas
Technical Planning • Engineering problems requiring specialized training, solved by • Contractor personnel • Consulting engineering firm • Equipment provider (e.g., leased cranes) • Construction in difficult environments • Downtown areas • Waterways or underwater • Across gorges, etc. • Installation of process equipment • Size and weight implications • Long-lead (late arrival) implications • Hazardous materials use, or disposal • Etc.
Personnel Planning • Early identification of the crafts, levels of skill within the craft, and numbers needed • Timing: When does the project plan say they are needed? • Ramp up? • Ramp down? • Share with other projects in prime contractor’s portfolio? • Screening, interviews, drug testing, hiring to match needs • Consistent wages and benefits for hourly personnel • Consistency on the site • Consistency with competing opportunities off-site • Training programs (skill, safety rules, perhaps English) • Housing and transportation may be required
Safety Planning • Construction is inherently dangerous; safety must be planned • The safety manager (or committee) can develop a safety program, consistent with OSHA regulations, but managers/personnel make it effective (or not) • Foremen have a particularly important role • Assure employees wear personal protective equipment (PPE) and use other safety equipment appropriately • Emphasize safety first, productivity second • Notice and correct unsafe acts, perhaps apply penalties • Quick actions on unsafe conditions (environment or equipment) • Emergency procedures must be planned, communicated, and practiced • There are standard, engineered solutions to many construction site hazards; yet each project may require something unique • You will learn much more in CE 464 Safety Engineering
Quality Planning • There is an inherent conflict between achieving schedule and the quality of workmanship or overall work results • Quality of workmanship in crafts is achieved when • The management (through foremen) emphasizes and expects quality in every job • The management provides the appropriate drawings, instructions, materials, equipment, training, etc. for the worker to produce quality; and the worker gets feedback • The worker is motivated to meet expectations • Quality planning especially applied to item 2 above, so e.g. if the worker is expected to mix a batch of concrete, he would have the “recipe” and instructions, the proper materials and equipment, know how to do the steps safely, and then have a way of knowing the batch meets specifications • Quality planning applies to technical and business processes as well, at the contractor and in how contractor will manage quality of supplied materials and subcontracted work
Material Ordering and Expediting • Material items and quantities were “take-offs” during the bidding process • Material delivery lead times determine the order in which purchase orders are prepared • Delivery dates are specified on the order • Quantity and quality specifications go along with drawings (if necessary) to the supplier • Sometimes, the supplier’s raw materials and fabrication process are subject to audit; samples and testing may be specified to assure quality prior to producing the items in quantity • Shipping arrangements and arrival dates are coordinated • Any potential delay in manufacturing or shipping requires prompt action, first by expeditor and if necessary by program manager
Material Handling, Storage, and Protection • Arrivals of material on-site should be planned • A specific worker should handle the receipt of materials • Purchase order is used to check identity and quantity of items • Notes are taken on “not correct , short, or damaged” materials • Unloading equipment and the designated on-site storage location, unless materials go directly to workface • Inventory control procedure are used to track quantities and location of all on-site materials; helps avoid assignment of materials to wrong installation, and also can be used to control accessibility issues • The fewer intermediate moves (put down, pick up, move), the better for both material quality and workplace productivity
Equipment Planning • Major equipment items were identified in the bidding process • The project schedule indicates when each is needed • The company decided whether to buy, lease, or rent the equipment during the bidding process • Operational planning would detail: • The coverage (or spread) of each equipment item at site • The roads or fixed position it will operate on, and any necessary preparation • Plans for fueling & operators based on operating hours • Maintenance planning would detail: • The maintenance facility and equipment • A preventive maintenance plan with staffing • Spare/repair parts with staffing, or outsourcing plan
Assembly Process Planning • Construction projects are one-of-a-kind (one-off), but assembly processes can be planned to gain maximum efficiency • Subassemblies can be prefabricated • Materials can be stored close to their point of use, and moved into place mechanically • Power fastening systems • Simplify • The drawings • Work instructions • Processes • Material flow from stores to processes, and between processes • Joining or fastening steps • Checking for correct assembly
Weekly Production Planning • Every foreman must do, or have done for him • Next week’s work is identified from a project schedule, perhaps in a meeting or communication with a higher level manager (see Figure 6.3) • Checks are made for • Drawings (latest version? changes approved? sequenced in the order the work will be done?) • Special tools or equipment: will they be available? • Required materials; are they on-site? where located and accessible? Also, support materials? • Work space condition: access, free of clutter, other crafts to be present, supporting utilities, sufficient lighting? • Safety hazards to be resolved; safety equipment available?
Other Visual Aids for Production Planning • Production Checklists (see Figure 6.2) • Look-ahead Schedules • 4-6 week rolling schedule for PM and field superintendent • 7day look-ahead schedule (foreman’s plan) with dates, workers, and manhours planned for each task • Personnel assignments (persons assigned to activities, or split between several; persons assigned to tasks as in Figure 6.3) • Site maps with key equipment and work crew locations, updated whenever there is a move