week 2

• AS2- What is proper site establishment? tem facilities, signage

  The works required to prepare a site for the commencement of construction.

  Proper site establishment ensures the project site is ready and suitable for construction or works to begin, that workers have access to everything they need to perform their jobs well and safely, and that other stakeholder issues have been properly planned for
• Temporary facilities and components required for site establishment

  • Site sheds
  • Fencing
  • Signage
  • Storage areas
  • Plant areas
  • Traffic management
• Factors affecting site establishment requirements

  • Project type
  • Scale
  • Design
  • Location
  • Nature of construction work
• 
  

  • Extensive time and cost overruns will result if there is no effective and systematic approach to site establishment on commercial construction projects which generally require a significant amount of workers, subcontractors and equipment.

  
  

  • The labour cost on a project commercial construction constitutes approximately 50 to 60 percent of the total project cost therefore significant saving can be occurred if the workforce force moved freely and quickly within the site.
• Local governments may require a Construction Management Plan (CMP) to be submitted before works can commence, to address public safety, amenity, site security, construction hours, noise control, air and dust management, stormwater and sediment control, waste management, and traffic management
• Site layout


  How the various components to prepare a site for construction are laid out, and developing a site layout plan identifying, sizing and placing temporary facilities, major construction plant and storage areas within the boundaries of construction site

  
• Fundamental components of site layout

  • Site accessibility
  • Traffic control
  • Site security
  • Site signage
  • Site offices & facilities
  • Storage areas
  • Major construction plant
  • Services (portable clean drinking water)
  • Environmental ( Identify and locate erosion and sediment control measures (particularly during the excavation phase). Locate the collection, storage, and disposal of excess or waste materials. Consider ground water contamination)

  
• Detailed planning of the site layout can enable considerable productivity improvement by minimising double or triple handling of material, waiting time and increasing worker morale by providing a better and safer work environment
• Construction planning


  The process of developing a construction strategy, construction programme, and managing activities, durations, paths, critical paths, and float
• Most construction sites that run into trouble do so for reasons related to managerial factors rather than technical problems
• Failure to plan is a prime cause of operational inefficiency and can increase the overall cost of a project substantially
• Construction strategy


  The first step in construction planning, involving gathering information, reviewing project requirements, establishing a site organisation chart, selecting the project site team, reviewing the method of construction, selection and availability of plant, supply chain, sources of materials, and specific buildability items
• Construction programme


  Describes the sequence in which activities must be carried out so that a project can be completed on time, allowing an onsite team to monitor progress, plan resource allocation and ensure efficient project completion
• Activity


  An operation or process consuming time (duration) and possibly other resources
• Duration


  The length of time needed to complete an activity
• Path


  An activity or an unbroken sequence of activities in a programme
• Critical path


  The longest sequence of activities through a project programme from start to finish, the sum of whose durations determines the overall project duration
• Float = referred to as slack

  The amount of time an activity can slip before it causes the project to be delayed. Only applies to activities not on the critical path.

  • Identifying float can be helpful in highlighting where it may be possible to transfer resources to tasks that are on the critical path.
  • Activities not on the critical path; in other words, the delay is “free” of impact on other activities.

  
  

  
  

  
  

  
  

  
  
• QBCC Classes 2 to 9

  Low-rise residential, Commercial Building, Industrial Building, Shopping Centre tenancy fitout, Demolition of low-rise reinforced concrete building
• Applicable WHS legislation for site establishment


  .

  
• Path, and Critical Path

  • A 'path’ refers to an activity or an unbroken sequence of activities in a programme.
  • The critical path is the longest sequence of activities through a project programme from start to finish, the sum of whose durations determines the overall project duration.
  • The critical path:
  • –  Can Help identify the activities that must be ? completed on time in order to complete the whole project on time.
  • –  Confirm which tasks can be delayed and for how long without impacting the overall project schedule.
  • –  Calculate the minimum amount of time it will take to complete the project