PJM_Design_Phase_Deliverables Flashcards
(20 cards)
What is the primary focus of the Schematic Design (SD) phase?
Showing general arrangement of spaces and overall design intent, including basic plans, elevations, and presentation drawings without detailed dimensions or material specs.
What kind of scale is typically used for floor plans in SD phase for large and small buildings?
1/16” scale for large buildings, 1/8” or 1/4” for small buildings or interior projects.
What information is typically NOT included in SD phase floor plans?
Detailed dimensions, door/window sizes, casework, or construction details.
What do outline specs include in SD phase?
General description of major materials and systems, often in narrative form.
What does the Design Development (DD) phase aim to achieve?
Refining the design, depicting all systems (architectural, structural, MEP, fire protection), and preparing more detailed drawings.
What types of systems and components should DD drawings show?
Architectural, structural, HVAC, electrical, plumbing, fire protection systems, and sometimes lighting and landscape concepts.
How does the use of BIM affect the level of detail in DD phase?
BIM often increases detail at earlier stages due to modeling requirements, making DD resemble a 50% CD set.
What kind of specifications are included in DD phase?
Three-part format specs with limited info, focusing on Part 2 – Products, often just one page per section.
When do major design decisions need to be finalized in a BIM project?
By the end of the DD phase, especially for structural and MEP coordination.
What is the purpose of the Construction Documents (CD) phase?
To finalize all drawings and specs so they can be used for bidding, permitting, and construction.
What changes from DD to CD in drawing content?
Details are finalized, all drawings are fully dimensioned, and complete schedules, symbols, and coordination notes are included.
Why is it critical to coordinate consultants’ drawings in CD phase?
To avoid clashes between systems such as ductwork and piping.
What are LODs in BIM and why are they important?
Levels of Detail that define modeling requirements at each phase, ensuring consistent and appropriate content in virtual models.
How many levels of detail (LOD) are defined in AIA G202?
Five levels, from LOD 100 (massing) to LOD 500 (as-constructed detail).
Does using BIM change the type of deliverables required for each phase?
No, deliverables like plans, elevations, and sections remain the same; only the level of embedded detail increases.
What is the risk of producing too much detail too early?
Increased rework and reduced profitability if the design is not yet approved by the owner.
How should detail progress through SD, DD, and CD?
Gradually increasing detail in a phased manner to match the phase-specific design maturity.
Why might SD and DD phases be longer in BIM projects?
More early decisions and higher modeling detail requirements extend these phases.
What marks the transition from DD to CD?
Finalization of major design decisions and beginning of detailed documentation for construction.
What is included in CD site plans that differs from earlier phases?
Topography, curbs, paving, utilities, landscaping, and full dimensioning and detailing.
