Although the key process of identifying grow-in and fall-in hazards to both distribution and transmission lines are similar, the regulations, environments and client priorities will differ significantly between the two.
For example, transmission lines in the US are often able to maintain large clear cut corridors so the numbers of vegetation grow-in hazards will be very small. For distribution lines, which are much more prevalent, it is impractical to hope to maintain a clear cut and so the number of grow-in and fall-in hazards are more significant. Because of this, different kinds of analyses that assess the volume and likelihood of areas of vegetation hazards are valuable to aid in work management prioritisation.
Furthermore, the collection and processing of LiDAR data over the two are done very differently. Transmission lines are collected in corridors, and vegetation analysis often accompanies an engineering-grade power line modelling exercise, requiring precise LiDAR classification and high levels of accuracy. Distribution projects are often collected in wide area fashion due to the dispersed layout of the network and typically include much more automation during processing due to the larger volume of data.
At NM Group, we have plenty of experience in providing tree risk information in a clear and directly actionable way to make this as straightforward as possible for utilities. We do not try to know how to best cut a tree in the field. Instead, we help the guys on the ground do their job more efficiently and with as much information as possible!
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