Visual Maintenance Planning Tool for Railroad Track Scheduling

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Solution Overview

Problem

Current capacity planning tools used by train dispatchers for scheduling railroad maintenance are often unreliable and inefficient, leading to conflicts with train schedules and increased maintenance costs.

Innovation Solution

A visual maintenance planning tool that generates representations of railroad stations and tracks, allowing dispatchers to identify and schedule maintenance windows during traffic gaps, reducing conflicts with train crossings and previously scheduled maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing capacity planning tools are used to schedule maintenance windows, then maintenance scheduling is performed, but the tools are unreliable and inefficient, leading to conflicts with train schedules

Engineering Contradiction:
Improvemaintenance scheduling reliabilityVSAvoidmaintenance scheduling efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent transitions from traditional linear text-based scheduling to a two-dimensional visual interface where railroad tracks are displayed horizontally and time periods vertically. This dimensional transformation allows dispatchers to simultaneously view multiple maintenance windows, train crossings, and conflicts in a single visual field, dramatically improving both reliability of scheduling decisions and efficiency of the scheduling process.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The visual maintenance planning tool acts as an intermediary between the complex railroad operations data and the dispatcher. It processes raw scheduling data, train crossing information, and maintenance requests, then presents them in an intuitive visual format with automatic conflict detection, reducing the cognitive load on dispatchers and eliminating errors from manual scheduling.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If maintenance windows are scheduled without visual aids, then scheduling can be performed quickly, but conflicts with train crossings and previously scheduled maintenance occur

Engineering Contradiction:
Improvescheduling operation easeVSAvoidscheduling conflict avoidance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system provides immediate visual feedback when potential conflicts are detected. When a maintenance window overlaps with a train crossing or another maintenance activity, the interface automatically highlights the conflict, allowing dispatchers to adjust scheduling decisions in real-time. This feedback mechanism maintains ease of operation while significantly improving conflict avoidance reliability.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The visual tool performs preliminary analysis of potential conflicts before the dispatcher finalizes scheduling decisions. By pre-calculating and displaying all conflicts in the selected time period, the system allows dispatchers to make informed decisions upfront, avoiding the need for reactive conflict resolution later and maintaining operational simplicity.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If traditional non-visual systems are used for maintenance scheduling, then system complexity is low, but maintenance compliance reporting accuracy is reduced

Engineering Contradiction:
Improvescheduling system complexityVSAvoidmaintenance compliance reporting accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The visual interface creates an accurate visual copy of the railroad track layout, station locations, and time period data. This visual replica maintains precise spatial and temporal relationships, enabling accurate measurement and reporting of maintenance compliance metrics such as the number of cancelled maintenance windows, hours crews spend waiting, and hourly costs, all while keeping the underlying system architecture relatively simple.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20240127138A1Systems and methods for scheduling track maintenance
Publication Date: 2024.04.18 BNSF RAILWAY COMPANY
  • US20240127138A1 patent drawing
  • US20240127138A1 patent drawing
  • US20240127138A1 patent drawing

AI summary

In one embodiment, a method includes generating a first visual representation of a location of a railroad station in relation to a railroad track, receiving a request for a first maintenance window, and determining that the first maintenance window is associated with the railroad station. The method further includes determining a first time period and generating a second visual representation of information associated with the railroad station during the first time period. The information includes an indication of a time that a train is scheduled to cross the railroad station during the time period. The information also includes an indication of a time duration for a second maintenance window that has been requested during the time period.