above elevator hoistways. Size machine rooms to accommodate the maximum space
requirements anticipated from competitively bid projects, including adequate
space to service the equipment. Provide air conditioning in machine rooms to
maintain ambient temperature below 32 degrees centigrade and above 15 degrees
centigrade (below 90 degrees F and above 60 degrees F.) Provide filters to
remove dust. Size hydraulic elevator rooms accordingly for the equipment,
adjacent or at least within 15 meters (50feet) of the elevator and should be
on the lowest served floor.
Elevator Car Enclosure. Car lighting will be either indirect or
of the luminous ceiling type. Provide mechanical exhaust for elevator cars.
MATERIALS HANDLING AND MANAGEMENT SYSTEMS CONSIDERATIONS
Adjacency Considerations and Handling Considerations. Figure
17.17 provides a guideline for adjacencies of materials management areas and
Materials Handling System Alternative Matrix. The specific
systems included in a project shall be determined by detailed physical,
functional and economic including life cycle cost studies (LCC). As a
minimum, consider the systems noted on Figure 17.17.
Manual Bulk Handling Systems. Use manual systems where semi or
fully automated systems cannot be physically and economically (LCC) justified.
Manual tasks such as pushing, pulling and carrying shall consider safety and
human engineering factors. Designs should use general ergonometric standards
applicable to "industrial women". Additional criteria for study / application
of manual systems include:
Movement Loads. The design shall limit the sustained effort to
move loaded carts to 10.43 kg (23 lb) pushing force where distances exceed
30.5 m (100 ft), on hard level surfaces. Initial forces required to initiate
movement shall not exceed 22.68 kg (50 lb).
Movement Speeds. Use the following movement speeds when studying
manual and automated alternates:
a. Walking unencumbered, through generally open corridor spaces - 1.32
m/s (260 FPM);
Walking while carrying tote box or medium sized parcel under 11.34
kg (25 lb) - 1.07 m/s (210 FPM)
c. Pushing cart through substantially straight and open areas - .89 m/s
d. Pushing cart through areas that are congested, or where substantial
numbers of turns are involved - 0.46 to 0.686 m/s (90 to 135 FPM);
Or, as recommended by the MTC based on restrictions of the location.
Semi-Automatic Bulk Handling Systems.