Cross-Bore Risk Mapping Using Machine Learning for Utility Inspection

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Solution Overview

Problem

Current methods for identifying cross-bores in underground utility networks are invasive, costly, and lack a high-confidence method to prioritize areas most likely affected, posing a risk to public safety and property.

Innovation Solution

A method and system using machine learning techniques to calculate risk probability values for underground assets, spatially distribute these values, and produce a graphical output for risk assessment, leveraging GIS data and orthogonalized quadrature to predict cross-bore locations with statistical validity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Difficulty of detecting and measuring

If invasive methods are used to identify cross-bores, then detection capability is improved, but cost and risk increase

Engineering Contradiction:
Improvecross-bore detection capabilityVSAvoidrisk to public safety and property
Core Design Contradiction:
Difficulty of detecting and measuringVSObject-affected harmful factors

Solution Approach 1:

The patent replaces invasive mechanical detection methods with a non-invasive machine learning-based predictive system. The system uses training data from known cross-bore locations and machine learning algorithms to predict probable cross-bore locations without physically invading or disturbing the underground utility network, thereby eliminating the harmful effects of invasive detection while maintaining detection capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary risk probability map that mediates between the detection goal and the ground truth. Instead of directly detecting cross-bores through invasive means, the system uses machine learning models to create a probabilistic representation of risk areas, which then guides targeted non-invasive inspections only where needed, reducing overall risk while improving detection effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If comprehensive inspection of all areas is performed, then detection accuracy is improved, but time and cost increase

Engineering Contradiction:
Improvecross-bore location accuracyVSAvoidinspection time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies local quality by transitioning from uniform comprehensive inspection to targeted localized inspection. The machine learning model generates risk probability values for different locations, allowing inspectors to concentrate their time and resources only on high-risk areas where cross-bores are most likely to occur. This maintains high measurement precision for the inspected areas while dramatically reducing overall inspection time.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent performs preliminary action by using machine learning models to pre-identify and rank potential cross-bore locations before actual inspection occurs. The system processes training data and generates predictive risk maps in advance, enabling inspectors to prepare and prioritize their inspection routes efficiently, thereby reducing the time required for comprehensive inspection while maintaining accuracy.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If subjective risk assessment methods are used, then ease of operation is improved, but reliability decreases

Engineering Contradiction:
Improverisk assessment easeVSAvoidrisk assessment accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements feedback by using machine learning models that continuously learn from inspection results and cross-bore data. The system processes feedback from actual inspections and cross-bore detections to refine its predictive models, improving reliability over time. This automated feedback loop eliminates subjective human judgment while maintaining ease of operation through automated risk calculation and spatial distribution.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies self-service by enabling the risk assessment system to autonomously process data, calculate risk probabilities, and generate inspection priorities without human intervention. The machine learning models automatically learn from available data and perform risk assessments independently, providing both ease of operation through automation and reliability through consistent, objective calculations rather than subjective human judgment.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250238881A1Cross-bore risk assessment and risk management tool
Publication Date: 2025.07.24 HYDROMAX USA LLC
  • US20250238881A1 patent drawing
  • US20250238881A1 patent drawing
  • US20250238881A1 patent drawing

AI summary

A method for cross-bore risk management involves receiving at least one dataset comprising a plurality of assets and cross-bore data. A risk probability value is calculated, using a processor, based on the cross-bore data for each asset of the plurality of assets using machine learning techniques. The risk probability values are spatially distributed around each respective asset. A graphical output is produced that illustrates the risk probability for a specified geographical area based on the spatially distributed risk probability values.