Clearances & Violations

Layers

Layer	Type	Description
Midspan Clearance	3D Point	Point placed on the center of the lowest wire between two utility poles, height measured from the ground.
Lowest Line Sag	3D Point	Point placed on the lowest point of the lowest wire between two utility poles, height measured from the ground.
Road Clearance	3D Point	Lowest wire point where span crosses a road. NESC: min 15.5′ over truck-accessible roads.
Railroad Lines Clearance	3D Point	Lowest wire point where span crosses a railroad. NESC: min 23.5′ over railroad.
Attachment Violations	Pole Attribute	Distance to next attachment and violation status delivered as utility pole layer attributes.
Vegetation Buffer	LiDAR + Pole Attr.	Vegetation classified point cloud data within a specified buffer distance of utility equipment. Adds 2% to quote.

Configuration Parameters

Parameter	Options	Details
Density	Rural, Suburban, Urban	Adjusts analysis parameters for different infrastructure densities.
Buffer Width	Default: 120′ total (60′ each side)	Total width in feet measured from centerline of the corridor.
Project Size	Linear feet	Total project extent for pricing calculation.
Delivery Format	Tabular data or GIS layers	Results delivered as separate layers per clearance type or as tabular data.

Key Use Cases

NESC Compliance Audits: Proactively identify road and railroad clearance violations across your entire network before regulatory inspection.

Vegetation Management: Quantify vegetation encroachment near aerial equipment with classified LiDAR point cloud data for targeted trimming programs.

Attachment Compliance: Detect poles where attachments violate minimum spacing requirements without deploying field crews.

Capital Planning: Prioritize infrastructure upgrades using systematic, data-driven clearance measurements across thousands of miles.

Storm Hardening & Risk Assessment: Identify low-sag spans and critical clearance points to prioritize for resilience improvements.

Options: Midspan Clearance, Lowest Line Sag, Road Clearance, Railroad Lines Clearance, Attachment Violations, Vegetation Buffer.
Use case: Identifies and documents clearance violations in aerial infrastructure. Each clearance type is a selectable option — customers choose which ones they need.
Key details:
- Midspan Clearance: 3D point at the center of the lowest wire between two poles, with height from ground.
- Lowest Line Sag: 3D point at the lowest sag point of the lowest wire between two poles.
- Road Clearance: 3D point where wires cross a road. NESC standard: wire must be at least 15.5' over roads accessible by trucks.
- Railroad Lines Clearance: 3D point where wires cross a railroad. NESC standard: wire must be at least 23.5' over railroad.
- Attachment Violations: Delivered as attributes on the utility pole layer. Includes distance to next attachment and violation flag. Sub-options: Custom distances or NESC standard distances.
- Vegetation Buffer: Classified vegetation point cloud data within a specified buffer distance of utility equipment. Optional attribute for pole presence.