US Class I Rail Process Wiki Terminal & Yard Operations › Hump and Flat Classification
🗺 BPMN Process Flow
RR-03-02-03 BPMN Diagram

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📋 Process Attributes
Process IDRR-03-02-03
Domain FamilyOPERATIONS
L1 DomainTerminal & Yard Operations
L2 Process GroupHump and Flat Classification
TriggerArrival of a train at the terminal
OutcomeEfficiently classified and dispatched trains to their respective destinations with minimal delays.
SystemsNetControl I-ETMS Umler PS Technology EHMS TRAIN II CHARM Interline Settlement System (ISS) / SSDX / CHDX
Regulatory Hooks49 CFR Part 232 GCOR 6.28
📋 L4 Process Steps
StepNameRoleSystem InputOutputKPIPain Point / Risk Decision?Exception?
1.1 Train Arrival Notification Yardmaster NetControl Arrival report from the Harriman Dispatching Center (HDC) Updated train schedule in NetControl Train arrival notification within 5 minutes of actual arrival Delayed arrival notifications can disrupt the classification process. N Y
1.2 Pre-Classification Inspection Car Inspector (Carman) EHMS Train manifest and EHMS data Inspection report with any safety issues noted 100% compliance with pre-classification inspections Safety violations can delay the classification process. Y N
1.3 Hump Yard Setup Switchman/Switch Foreman I-ETMS Train schedule and inspection report Configured hump yard for classification Hump yard setup completed within 15 minutes Incorrect setup can lead to inefficient classification. N Y
1.4 Train Classification Switchman/Switch Foreman Hump yard (generic classification technology) Configured hump yard and train schedule Trains classified into specific tracks 95% accuracy in train classification Misclassification can lead to delays. Y N
1.5 Post-Classification Inspection Car Inspector (Carman) EHMS Classified train data and EHMS records Final inspection report with any issues noted 100% compliance with post-classification inspections Safety violations can delay the dispatch process. Y N
1.6 Train Departure Notification Yardmaster NetControl Final inspection report and train schedule Updated departure status in NetControl Train departure notification within 10 minutes of actual departure Delayed departure notifications can cause delays for downstream operations. N Y
1.7 Update Interline Settlement System (ISS) Switchman/Switch Foreman ISS / SSDX / CHDX Train schedule and classification data Updated interline settlement records 100% accuracy in ISS updates Incorrect updates can lead to billing errors. Y N
1.8 Update Car Hire Accounting Rate Master (CHARM) Switchman/Switch Foreman CHARM Train schedule and classification data Updated car hire records 100% accuracy in CHARM updates Incorrect updates can lead to financial discrepancies. Y N
1.9 Update Universal Machine Language Equipment Register (Umler) Switchman/Switch Foreman Umler Train schedule and classification data Updated equipment register 100% accuracy in Umler updates Incorrect updates can lead to operational inefficiencies. Y N
1.10 Update Tele Rail Automated Information Network Phase 2 (TRAIN II) Switchman/Switch Foreman TRAIN II Train schedule and classification data Updated train information network records 100% accuracy in TRAIN II updates Incorrect updates can lead to communication errors. Y N
1.11 Update Wayside Defect Detector Network (hot bearing / wheel impact / acoustic) Track Inspector Wayside defect detector network Train schedule and classification data Updated defect detection records 98% accuracy in defect detection Missed defects can lead to safety risks. Y N
1.12 Update Machine Vision Portals Switchman/Switch Foreman Machine Vision portals Train schedule and classification data Updated machine vision records 95% accuracy in machine vision updates Incorrect updates can lead to operational inefficiencies. Y N
📊 KPIs & Risk Register

KPIs

Terminal dwell under 24 hours Train speed above 20 mph 100% compliance with pre-classification inspections 95% accuracy in train classification 100% compliance with post-classification inspections Train departure notification within 10 minutes of actual departure

Key Risks

Air brake test defect released to the road Incorrect hump yard setup leading to inefficiencies Misclassification causing delays Billing errors due to incorrect ISS updates Financial discrepancies due to incorrect CHARM updates Operational inefficiencies due to incorrect Umler updates Communication errors due to incorrect TRAIN II updates Safety risks due to missed defects from the wayside defect detector network

Swim Lanes

Yardmaster · 1.1, 1.6 Car Inspector (Carman) · 1.2, 1.5 Switchman/Switch Foreman · 1.3, 1.4, 1.7, 1.8, 1.9, 1.10, 1.12