Dual-Process Routing Authority Generation for Rail Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current rail systems rely heavily on human dispatchers to manage locomotive and train routes, which can lead to safety issues due to human error and increased workload, as they struggle to efficiently handle conflicts and ensure safe routing without overlapping authorities.
Innovation Solution
A dual-process system that uses a central authority server to execute two independent routing processes: a train-centric process and a network-centric process, which provide consistent routing authority solutions by evaluating routes from different perspectives, ensuring safety and minimizing human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If human dispatchers manually manage locomotive and train routes, then routing decisions can be made with human judgment and adaptability, but safety issues arise due to human error and dispatcher workload increases
Solution Approach 1:
The system enables self-service by implementing an automated routing authority generation system where the computer system independently performs route validation, conflict detection, and authority generation without requiring manual dispatcher intervention for each routing decision, thereby eliminating human error while maintaining operational efficiency
Solution Approach 2:
The patent replaces the mechanical human decision-making process with an automated computer-based system that uses algorithms to validate routes, detect conflicts, and generate routing authorities, substituting human judgment with systematic computational processes that eliminate human error and reduce workload
2Reliability
If a single routing process is used to generate movement authority, then the system complexity is reduced, but the ability to ensure route safety and detect conflicts is insufficient
Solution Approach 1:
The system segments the routing validation process into two independent processes: a train-centric process that evaluates routes from the locomotive's perspective and a network-centric process that evaluates from the overall network perspective. This segmentation allows comprehensive safety validation while maintaining manageable complexity through modular process design
Solution Approach 2:
The system implements feedback by having two independent routing processes generate candidate solutions that are then cross-validated against each other. The comparison of results from both processes provides feedback that ensures route safety and detects conflicts that a single process might miss, creating a self-correcting validation mechanism
3Productivity
If movement authority is granted without comprehensive conflict checking, then the routing process is faster and simpler, but safety issues and overlapping authorities occur
Solution Approach 1:
The system performs preliminary action by conducting comprehensive conflict checking and route validation before granting movement authority. The train-centric and network-centric processes both evaluate potential conflicts and safety issues in advance, ensuring that only safe routes receive authority grants, thereby preventing safety issues before they occur
Solution Approach 2:
The system maintains continuity of useful action by implementing ongoing conflict detection and route validation throughout the routing process. The independent processes continuously check for conflicts and safety issues, ensuring uninterrupted safe operation rather than performing single-point checks, thereby maintaining both speed and reliability
Data Source
AI summary
A dual-process system for the automatic generation of railway route-solution candidates and their concomitant movement authorities includes a central authority server that accepts dispatcher-provided start and end point data and time information and executes two different independent routing processes to provide two independently determined route-solution candidates. The two solutions are compared for consistency and, when consistent, the route with the minimum authority grants is selected as the solution for use by the locomotive or train.