RR-03 RR-03-02-02 — Hump and Flat Classification
The process involves the classification of inbound trains into outbound trains at a hump yard using gravity-assisted switching technology. This includes sorting cars based on destination and preparing them for departure.
🗺 BPMN Process Flow
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📋 Process Attributes
| Process ID | RR-03-02-02 |
|---|---|
| Domain Family | OPERATIONS |
| L1 Domain | Terminal & Yard Operations |
| L2 Process Group | Hump and Flat Classification |
| Trigger | Arrival notification from Harriman Dispatching Center (HDC) indicating an inbound train is ready for classification. |
| Outcome | A fully classified outbound train set, with all cars properly sorted and secured, ready for departure. |
| Systems | Harriman Dispatching Center (HDC) NetControl I-ETMS EHMS CHARM TRAIN II |
| Regulatory Hooks | 49 CFR Part 232 GCOR 6.28 |
📋 L4 Process Steps
| Step | Name | Role | System | Input | Output | KPI | Pain Point / Risk | Decision? | Exception? |
|---|---|---|---|---|---|---|---|---|---|
| 1.1 | Receive Arrival Notification | Yardmaster | Harriman Dispatching Center (HDC) | Arrival notification with train details | Acknowledgment of receipt | Time to acknowledge arrival < 5 minutes | Delayed notification from HDC | N | Y |
| 1.2 | Prepare Yard for Classification | Yardmaster | NetControl | Arrival notification details | Yard configuration plan | Yard readiness within 30 minutes | Inadequate yard space for classification | N | N |
| 1.3 | Conduct Pre-Classification Inspection | Car Inspector (Carman) | EHMS | Train manifest | Inspection report | 100% inspection completion within 2 hours | Missing or inaccurate manifests | Y | Y |
| 1.4 | Set Up Hump Yard for Classification | Switchman/Switch Foreman | I-ETMS | Yard configuration plan | Hump yard setup confirmation | Setup time < 1 hour | Technical issues with I-ETMS | N | N |
| 1.5 | Release Train to Hump Yard | Yardmaster | NetControl | Hump yard setup confirmation | Train release order | Time from setup to train release < 10 minutes | Communication issues with NetControl | N | Y |
| 1.6 | Classify Cars Using Hump Yard Technology | Switchman/Switch Foreman | Hump yard (generic classification technology) | Train release order | Sorted cars on outbound tracks | Classification accuracy > 98% | Technical failures in hump yard equipment | N | Y |
| 1.7 | Verify Car Sorting and Securing | Car Inspector (Carman) | Machine Vision portals | Sorted cars on outbound tracks | Verification report | Verification completion within 1 hour | Inadequate visibility for machine vision | Y | N |
| 1.8 | Prepare Train for Departure | Yardmaster | NetControl | Verification report | Departure order | Time from verification to departure < 30 minutes | Delays in obtaining departure clearance | N | Y |
| 1.9 | Update Train Manifests and Accounting | Car Inspector (Carman) | CHARM, TRAIN II | Departure order | Updated manifests and accounting records | Manifest update accuracy > 95% | Data entry errors in CHARM | Y | N |
| 1.10 | Notify Harriman Dispatching Center of Departure | Yardmaster | Harriman Dispatching Center (HDC) | Departure order | Acknowledgment of departure | Time to notify HDC < 5 minutes | Communication failures with HDC | N | Y |
| 1.11 | Review and Analyze Classification Performance | Service Design / Network Planning Analyst | NetControl, I-ETMS | Classification data | Performance report | Improvement in classification efficiency > 5% per month | Lack of historical performance data | Y | N |
| 1.12 | Adjust Classification Strategy Based on Analysis | VP Network Planning & Operations | NetControl, I-ETMS | Performance report | Updated classification strategy | Strategy implementation within 1 month | Resistance to change in operational practices | Y | N |
📊 KPIs & Risk Register
KPIs
Time to acknowledge arrival < 5 minutes Yard readiness within 30 minutes 100% inspection completion within 2 hours Setup time < 1 hour Time from setup to train release < 10 minutes Classification accuracy > 98% Verification completion within 1 hour Time from verification to departure < 30 minutes Manifest update accuracy > 95% Time to notify HDC < 5 minutes
Key Risks
Air brake test defect released to the road Inadequate yard space for classification Technical failures in hump yard equipment Communication issues with NetControl and HDC Data entry errors in CHARM
Swim Lanes
Yardmaster · 1.1, 1.2, 1.5, 1.8, 1.10 Switchman/Switch Foreman · 1.4, 1.6 Car Inspector (Carman) · 1.3, 1.7, 1.9 Service Design / Network Planning Analyst · 1.11 VP Network Planning & Operations · 1.12