The general arrangement drawing
‘The project in general’ and coded (--). (Clearly this
type of drawing would only arise on the smallest and
simplest of projects.)
The basic general arrangement drawing—the
drawing which provides the fundamental and minimal
information which will appear as the framework for
each individual elemental plan. The basic drawing, in
fact, from which future drawings containing elemental
information will be taken.
Since the latter has a substantial bearing on the other
two, it will be dealt with first.
The basic floor plan Let us assume that you are to
prepare a set of working drawings for a building project
and that, by means of techniques to be discussed in a
later chapter, you have decided that the floor plans will
be divided into five elements in the following manner:
(2-) Primary elements
(3-) Secondary elements
(5-) Services (piped and ducted)
(6-) Services (Electrical)
(7-) Fittings.
The basic plan from which these elemental drawings will
be produced is shown (produced by CAD) in 2.1.
General arrangement plans Whether the elemental
plans are to be drawn by CAD or manually, you must
first consider what common features of the plan will
need to appear in all five elementalised plans. It is
clearly important that the information carried by the base
negative, (manual) or layers common to all drawings in a
CAD set shall be (like the amount of lather specified in
the old shaving soap advertisement), not too little, not
too much, but just right. See below for a check list of
what the basic plan should contain and a list of those
items which more often than not get added to the
original needlessly and superfluously, to the subsequent
inconvenience of everyone.To be included: Walls
Main openings in walls (i.e. doors and windows)
Partitions
Main openings in partitions (doors)
Door swings
Room names and numbers
Grid references (when applicable)
Stairs (in outline)
Fixed furniture (including loose furniture where its
disposition in a room is in practice predetermined—
e.g. desks set out on a modular grid, etc.)
Sanitary fittings
Cupboards
North point.Items which tend to be included but should not be: Dimensions
Annotations
Details of construction — e.g. cavity wall construction
Hatching or shading
Loose furniture where its disposition is not
predetermined
Section indications.The basic plan (2.1) gives an idea of what should be
aimed at. Note that a uniform line thickness is used
throughout and that this is the middle of the three line
thicknesses to be recommended in Chapter 4.The elemental floor plan Generally speaking, if a
project needs to be dealt with elementally then it will