QUESTIONS WITH 100% ACCURATE ANSWERS
Pathway Considerations - Accurate answers In planning for OSP cabling, cable infrastructure must
be determined irst. The choices are underground, direct-buried, and aerial.
Underground plant - Accurate answers most expensive system, has the highest cable placement
capacity, longest projected lifespan, typically in excess of 50 years. Highest initial cost
Direct-buried plant - Accurate answers A lifespan of 30 years or shorter, depending on different
conditions
Aerial plant - Accurate answers Aerial plant typically has an expected life of about 30 years
Route approval - Accurate answers OSP designer should discuss routing with the customer. The
customer may have reasons not to use the proposed route (e.g., future plans for buildings and parking
lots)
Force route changes - Accurate answers field conditions may force route changes:
• Adverse ground conditions
• Coordination with other utilities
• Missing easement or permits
• Customer space utilization issues
• Document errors or omissions
• Unusual or special land use or activities in close proximity to the route
Existing route - Accurate answers The existing route may be fully adequate. The OSP designer
should evaluate the existing:
• Pole lines.
• Conduit.
• MHs.
• Handholes (HHs).
• Tunnels.
Alternate Route Considerations - Accurate answers An alternative route may be considered if the
field investigation indicates the proposed route would
• High installation costs.
• An unsafe working environment.
• Future maintenance issues.
Flagging, Painting, and Marking Utilities - Accurate answers All subsurface utilities must be located
prior to construction and may be required for proper design.
Uniform color code - Accurate answers Used for utility lagging, painting, or marking