|
Where safety and environmental issues
are factors, especially with hazardous material, such as asbestos
|
|
Where uninterrupted horizontal and vertical
material movement is necessary
|
|
When moving material in congested areas,
particularly where minimal use of the floor area is desirable
|
|
When transporting materials over long
distances
|
|
When transporting over rough terrain
|
|
When moving material without spillage
is imperative |