Overhead
Pros:
- Less expensive to build and repair
- Easier to spot faults/damage
- Can be built on any terrain
Cons:
- Susceptible to wind, ice and snow
- More vulnerable to damage from trees and vegetation
- More vulnerable to blinks caused by animals
- Susceptible to damage from vehicle collisions
Underground
Pros:
- Less susceptible to vehicle collisions
- Not impacted by trees, wind, ice and snows vulnerable to blinks caused by animals
- Less vulnerable to blinks caused by animals
Cons:
- More expensive to build and repair
- Susceptible to flooding
- Difficult to locate faults/damage
- Vulnerable to damage from digging
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