Design and Construction Handbook - Los Angeles World Airports

Norman Y. Mineta San José International Airport
Scope of Services Draft
material references may be made plural when it refers to more than one of
the same item.
3.9.12. Material references on Contract Drawings should be as succinct as possible
while still being unique and understandable. Example: Unitized Extruded
Aluminum Window Wall System is unnecessarily complex. Window Wall
System would probably be sufficient, unless there are several types and then
perhaps Unitized Window Wall System would be all that would be needed.
3.9.13. Limit abbreviations to those conditions where space needs to be conserved.
In the age of computers, little is to be gained by wide use of abbreviations.
3.9.14. Use of abbreviations shall be consistent across all documents. Do not use
the same abbreviation for two different words. The same abbreviation shall
be used for the same item throughout. Example: if STEEL PLATE is ever
abbreviated ST PLT then in every single other case it shall be abbreviated
the same. ST PLATE or STEEL PLT would not be acceptable in other
locations. The consistency of abbreviations across disciplines is expected.
3.9.15. Great care should be used with references such as NOT IN SCOPE or NOT
IN CONTRACT. These are to refer only to items that are not the scope of the
overall Contract, and should never be used to refer to things that are not a
part of one discipline, Subconsultant, or subcontractor.
3.9.16. To the extent possible, information should show in one place only.
Disciplines should avoid duplicating information from another discipline.
Dimensions shown on large scale plans, should generally not be repeated on
small scale plans.
3.9.17. Provide horizontal dimensions on plans, vertical dimensions on sections or
elevations.
3.9.18. All details must be referenced from somewhere on the plans, elevations or
sections. Unreferenced details are at the least confusing and probably
contractually non-binding.
3.9.19. Avoid large complex “details” that often end up covering more than is
necessary, obscuring the really unique part that should be the focus of the
detail. Breaking such details up into adjacent details in an exploded fashion
is preferable.
3.9.20. Use isometric details liberally to describe conditions where multiple axes
interfaces are the subject.
3.9.21. The schedules required in Chapter III-01 Design Tasks And Deliverables
mean real schedules not some other method of accomplishing the same
result. The City is open to other options, just as long as they are clearly
approved by the City prior to use. Actually with schedules in particular,
progressive thinking is encouraged to improve the communication of
information that was constrained by the limitations of hand drafted and
lettered schedules of yore. Computerization should allow greater options
than have been exploited to this point by the profession.
3.9.22. Some schedules may be more appropriately located in the Specification.
Discuss the location of all schedules with the City’s Design Manager prior to
preparation.
Revision G – 15 August 2006 CHAPTER III-01 - Design Tasks And Deliverables - 9