3.2
Elevators shall be provided in all facilities having two or more
floors and shall be of a design to provide the functional link for
the type of traffic anticipated. Elevators shall be of a size to
accommodate handicapped persons.
3.3
When planning the location of elevators, the following principles
shall be observed:
A.
Elevators shall be located so that the building entrances with
the heaviest traffic will have adequate elevator service.
Elevators shall be as near to the center of the building area
served as practicable, taking into consideration the distance
from the elevator bank or banks to the most distant functional
areas.
B.
Elevators shall be located so that they will serve all floors
that require service. This includes the basement,
sub-basement, as well as all of the typical floors of the
office building. Avoid placing elevators or dumbwaiters over
occupied spaces as this will require counterweight safeties
and reinforced pits.
C.
Consideration shall be given to the maximum walking distance
from the vertical transportation service to the most distant
function. This factor shall be weighed along with the
advantages of locating elevators near the center of the
building and the advantage of elevator clustering. In
general, the maximum walking distance to elevators should not
exceed 60 m (200 feet). Any decentralized banks and/or
clustering of elevators should be planned to include at least
two cars to maintain an acceptable dispatch interval between
cars and insure continuity of service.
D.
The lobby width between two banks of passenger elevators shall
be not less than 3.6 m (12 feet). Service elevators lobby
shall be no less than 4.2 m (14 feet).
4.
SIZE AND NUMBER OF ELEVATORS:
4.1
Size and number of elevators required for a given building depends
upon the size and function of the building, allocation of
activities in it, density of population, the physical location and
grouping of elevators, etc. The elevator installation needed for
a given facility shall be estimated on the basis of anticipated
local condition, quality of service, and the overall annual cost
of the installation. The overall annual cost of the transport
systems, including amortized costs of the original investment,
cost of maintenance, material, and consumed power shall be
considered.
4.2
The following primary functions shall be used for the purpose of
estimating the elevator requirements:
A.
The anticipated population density figures shall be provided
by the Department of Veterans Affairs to assist in the system
design. However, in all cases, the vertical transportation
requirements shall be planned for the total population that
the facility could reasonably house, rather than a forecast of
initial occupancy.
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