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Planning

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Quality, speed, and cost form the management triangle of construction (and other ... Project constraints affect choice of planning and delivery system ... Allowances ... – PowerPoint PPT presentation

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Title: Planning


1
Planning Delivery Systems
  • Construction Engineering 380
  • Engineering Law

2
Planning and Delivery
  • Quality, speed, and cost form the management
    triangle of construction (and other design and
    delivery systems)

time
time
quality
quality
cost
cost
Balanced job
Time constrained job
3
Planning and Delivery
  • Project constraints affect choice of planning and
    delivery system
  • Business judgment, engineering judgment, and
    legal judgment are all involved in the management
    triangle, and decisions must be made with an
    understanding of risk, project goals, and
    constraints

4
Planning and Delivery
  • Direct legal controls- registration, licensing,
    award process, standards, claims process
  • Indirect legal controls- loss of efficiency,
    contract and control ambiguity, cost of
    collection, risk management

5
Planning and Delivery
  • Contract award
  • Public contracts- usually competitive bid process
    of some kind
  • Private contracts- market governed
  • Contract pricing
  • Fixed price (lump sum)
  • Risk is with the contractor
  • Contractual method for increasing price of
    contract
  • Allows owner to better plan financing IF the
    plans and specs are sufficiently complete
    coordinated

6
Planning and Delivery
  • Cost (Cost plus) contracts
  • Beneficial when design conditions are uncertain
    or incomplete
  • Can be a problem for financiers of the project
  • No incentive for designer or contractors to
    manage cost
  • Can put in a guaranteed maximum amount (G-Max or
    GMP) and a cost-savings split option
  • Jobs are usually open book
  • Value engineering- is a gray area because of
    intellectual property issues and bid-shopping

7
Planning and Delivery
  • Unit price contracts
  • Used when material estimates are impossible or
    unreliable (soil excavation, remediation,
    asbestos)
  • Good for repetitive work easily categorized
  • How to handle general conditions needs to be
    addressed
  • Can be combined with other forms of contracting
    (for instance, LHI on development projects)

8
Planning and Delivery
  • Allowances
  • Set a fixed amount for certain categories of work
    to be included in the contract but final choices
    have not been made (used frequently for equipment
    and finishes)
  • Variances are handled through change orders
  • Must spell out net vs., gross, and how shipping,
    OH, and other related costs are handled

9
Planning and Delivery
  • Contingencies
  • Unallocated money set aside in a contract for
    uncertainties and other unforeseen (latent)
    conditions.

10
Planning and Delivery
  • Traditional delivery
  • Design and construction are separated
  • Design-bid-build sequence
  • Wider range of design possibilities
  • (theoretically) better quality control
  • Contractor left out of the design process
  • Adversarial relationships develop
  • Cost designed-in early, hard to fix

11
Planning and Delivery
Cost of changes

Cost of design
time
12
Planning and Delivery
  • Early design decision fix cost parameters and
    constrain subsequent decisions
  • Construction Management- three party contracting
  • Design-Build- single party contracting
  • Fast-tracking (design-assist)
  • Multiple Primes
  • Turnkey contracting (land, financing, eq)

13
Planning and Delivery
  • Partnering and teaming
  • Becoming more formalized
  • Set goals and expectations
  • Develop trust and commitment to the project
  • Build, operate, transfer
  • Build, operate, own
  • Privately financed infrastructure
  • More common in lesser developed countries with
    insufficient capital for water systems, sanitation
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