VHA PROGRAM GUIDE PG-18-3
April 2001
6. ELEVATORS, DUMBWAITERS, AND TRANSPORT SYSTEMS
a. Locate elevators, dumbwaiters, and transport systems, requiring future vertical and
horizontal expansion, to serve functions and activities in original building and proposed future
expansion.
b. Select types of vertical and horizontal transport designs on the basis of the kind and volume
of original and projected future traffic.
c. Analyze traffic during preliminary design stage to determine the economic feasibility of
originally installing vertical and horizontal transport systems having future additional capacity.
If that is not feasible, provide spaces for future hoistways. Provide future hoistway space with
knockout floor slabs to allow that floor space be utilized until the future expansion takes place.
d. When the designed equipment is overhead traction type, design the machine room area and
the machine beams to be removable. This facilitates machine room relocation and extensions of
hoistways.
e. When the designed equipment in hydraulic and designed for future vertical expansion,
structure the hoistway for future electric traction elevator.
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