RR-05 RR-05-05-03 — Wayside Detector Network (hot bearing, wheel impact, acoustic)
The process involves monitoring and responding to hot bearing, wheel impact, and acoustic detector alerts from the wayside defect detector network. This ensures timely maintenance of rolling stock to prevent derailments and improve safety.
🗺 BPMN Process Flow
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📋 Process Attributes
| Process ID | RR-05-05-03 |
|---|---|
| Domain Family | OPERATIONS |
| L1 Domain | Mechanical & Rolling Stock |
| L2 Process Group | Wayside Detector Network (hot bearing, wheel impact, acoustic) |
| Trigger | Detection of a hot bearing, wheel impact, or acoustic anomaly by the wayside defect detector network. |
| Outcome | Identification and resolution of the detected issue, ensuring safe operation of trains and minimizing delays. |
| Systems | Wayside defect detector network NetControl Wabtec Modular Control Architecture EHMS Umler |
| Regulatory Hooks | 49 CFR Part 231 49 CFR Part 229 |
📋 L4 Process Steps
| Step | Name | Role | System | Input | Output | KPI | Pain Point / Risk | Decision? | Exception? |
|---|---|---|---|---|---|---|---|---|---|
| 1.1 | Alert Generation | Service Operator | Wayside defect detector network | Sensor data from hot bearing, wheel impact, or acoustic detectors | Alert message to NetControl | Response time within 1 minute | False positives leading to unnecessary investigations | N | Y |
| 1.2 | Alert Notification | Train Dispatcher | NetControl | Alert message from Wayside defect detector network | Dispatch order to reroute or stop affected train | Notification time within 2 minutes | Overlooking critical alerts due to high volume | Y | N |
| 1.3 | Train Stoppage or Rerouting | Control Operator | NetControl | Dispatch order from Train Dispatcher | Train stopped or rerouted | Stoppage time within 5 minutes | Delays in stopping trains due to communication issues | N | Y |
| 1.4 | Initial Inspection | Machinist | Wabtec Modular Control Architecture | Stopped train data | Inspection report | Inspection time within 30 minutes | Difficulty in diagnosing issues from remote locations | Y | N |
| 1.5 | Defect Classification | Manager-Mechanical Maintenance | EHMS | Inspection report | Defect classification and priority level | Classification time within 1 hour | Misclassification leading to improper maintenance actions | Y | N |
| 1.6 | Maintenance Assignment | Senior Director-System Locomotive Facility | Umler | Defect classification and priority level | Work order to Downing B. Jenks Shop or North Platte, NE locomotive shop | Assignment time within 2 hours | Overlooking critical defects due to workload | N | Y |
| 1.7 | Repair or Replacement | Electrician (locomotive) | Wabtec Modular Control Architecture | Work order and train data | Completed repair or replacement | Repair time within 24 hours for critical defects | Delays in obtaining necessary parts | N | Y |
| 1.8 | Post-Repair Inspection | Machinist | Wabtec Modular Control Architecture | Completed repair or replacement data | Inspection report confirming defect resolution | Inspection time within 1 hour | Inadequate inspection leading to unresolved defects | Y | N |
| 1.9 | Train Release | Control Operator | NetControl | Inspection report confirming defect resolution | Dispatch order to release train | Release time within 30 minutes | Delays in releasing trains due to communication issues | N | Y |
| 1.10 | Post-Release Monitoring | Service Operator | Wayside defect detector network | Train release data | Continuous monitoring for any new issues | Monitoring time within 24 hours | Overlooking post-release issues due to high volume | Y | N |
📊 KPIs & Risk Register
KPIs
Response time within 1 minute Notification time within 2 minutes Stoppage time within 5 minutes Inspection time within 30 minutes Classification time within 1 hour Assignment time within 2 hours Repair time within 24 hours for critical defects Release time within 30 minutes Monitoring time within 24 hours
Key Risks
Overlooking critical alerts due to high volume Delays in stopping trains due to communication issues Misclassification leading to improper maintenance actions Overlooking critical defects due to workload Inadequate inspection leading to unresolved defects
Swim Lanes
Service Operator · 1.1, 1.9 Train Dispatcher · 1.2 Control Operator · 1.3, 1.9 Machinist · 1.4, 1.8 Manager-Mechanical Maintenance · 1.5 Senior Director-System Locomotive Facility · 1.6 Electrician (locomotive) · 1.7