Definitions - D
DB - Design Build
DBB - Design Bid Build
DD - Design Development
DE - Division Engineer
Denver Service Center (DSC)
Design-Build (DB) Construction Documents – 100% Draft
Design-Build (DB) Construction Documents – 100% Complete
Design-Build (DB) Construction Drawings
Design-Build (DB) Design Development Drawings
A Design Concept is the informal presentation of design solutions and ideas that are based on both the existing Site and Building Character Assessment and the completed Project Program. It typically consists of rough thumbnail sketches, study models, electronic images, and narratives that convey various approaches. A Design Concept is still at the idea stage, prior to developing Schematic Design Alternatives.
Design Concepts Assessment
Typical ranges for design contingency are:
Design Development (DD)
In general, design development is the evolution of the whole building and site as a system, including specific construction issues which may affect the final project. In this phase, the schematic design continues to be defined through plans, elevations and sections — the size of rooms, types of materials, and exact placement of the building on the site. Specific design issues are addressed and resolved in order to develop detailing. Particular attention is given to the quality of the design, its documentation, and agreement with the original goals set during Predesign. Additionally, selections of materials and engineering systems are tested against the overall project budget.
Specific to the National Park Service, designers shall provide the NPS with drafted to-scale drawings and outline specifications that illustrate and define the project. These drawings specifically delineate the site plan, floor plans and exterior elevations. It is important that the park staff provide feedback to the design team at this time, as the Draft Design Development Documents are used as the basis for the Construction Documents. Value Engineering and choices are made, if necessary, to align project scope against costs.
Design Development Drawings
Design Development Deliverables
Design Documents Coordination Check
Design Noise Levels
“Design Stage Value Analysis (DSVA)
A DSVA study may take several forms:
NOTE 1: Quoted paragraphs are from the Department of the Interior, Departmental Manual: Effective Date: 12/19/08, Series: Management Systems and Procedures, Part 369: Value Analysis, Chapter 1: General Criteria and Policy. http://elips.doi.gov/app_DM/act_getfiles.cfm?relnum=3820NOTE 2: When reference is made to construction costs, it refers to “Net Construction”.
Determination and Findings
Development Advisory Board (DAB)
Developmental History (Historic Structure Report)
DHV - Design Hourly Volume
Director’s Order 12 (DO-12)
Division 1 Specifications
DO-12 - Director’s Order 12
DSC - Denver Service Center
DSC Transportation Division
DSVA - Design Stage Value Analysis