US Class I Rail Process Wiki Terminal & Yard Operations › Air Brake Tests & Departure Inspection
🗺 BPMN Process Flow
RR-03-05-01 BPMN Diagram

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📋 Process Attributes
Process IDRR-03-05-01
Domain FamilyOPERATIONS
L1 DomainTerminal & Yard Operations
L2 Process GroupAir Brake Tests & Departure Inspection
TriggerTrain arrival at the Bailey Yard (North Platte, NE) with a manifest of freight cars requiring air brake tests.
OutcomeAll freight cars pass the air brake test and receive necessary clearances for departure, ensuring compliance with safety regulations.
SystemsNetControl I-ETMS Umler PS Technology EHMS
Regulatory Hooks49 CFR Part 232 GCOR
📋 L4 Process Steps
StepNameRoleSystem InputOutputKPIPain Point / Risk Decision?Exception?
1.1 Train Arrival Notification Yardmaster NetControl Train arrival manifest Arrival notification to the Yardmaster's console Time from train arrival to first car inspection < 10 minutes Delayed train arrivals affecting yard operations N Y
1.2 Car Inspection Preparation Car Inspector (Carman) Umler Train arrival manifest and Umler database Inspection checklist for each car 100% accurate inspection checklists generated within 5 minutes Missing or inaccurate manifests N Y
1.3 Visual Inspection of Cars Car Inspector (Carman) Machine Vision portals Inspection checklist and car images Visual inspection report 95% accuracy in visual inspections within 2 minutes per car Defective brakes not immediately visible N Y
1.4 Air Brake Test Execution Car Inspector (Carman) Wabtrax Visual inspection report and Wabtrax test equipment Air brake test results 100% successful air brake tests within 5 minutes per car Defective brakes causing failed tests Y Y
1.5 Review of Air Brake Test Results Car Inspector (Carman) Umler Air brake test results and Umler database Test result summary 90% accuracy in test result review within 3 minutes Incorrect interpretation of test data Y Y
1.6 Defective Brake Repair Notification Car Inspector (Carman) PS Technology Test result summary and PS Technology system Repair notification to the Maintenance Department 100% repair notifications within 2 minutes of identifying defects Delayed repairs affecting train schedules N Y
1.7 Clearance for Departure Yardmaster NetControl Test result summary and clearance request Departure clearance order 95% clearance orders issued within 1 minute of receiving results Incorrect or delayed clearances N Y
1.8 Train Departure Preparation Switchman/Switch Foreman Hump yard (generic classification technology) Departure clearance order and train schedule Prepared departure track with all cars secured 100% prepared tracks within 5 minutes of receiving clearance Track preparation delays due to equipment issues N Y
1.9 Train Departure Notification Yardmaster NetControl Prepared departure track and train schedule Departure notification to the Harriman Dispatching Center (HDC) 90% timely notifications within 2 minutes of departure Delayed notifications affecting dispatch coordination N Y
1.10 Post-Departure Review Car Inspector (Carman) Umler Departure notification and Umler database Post-departure review report 100% accurate post-departure reviews within 3 minutes of departure Inaccurate or incomplete reviews Y Y
1.11 Update Maintenance Records Car Inspector (Carman) EHMS Post-departure review report and EHMS system Updated maintenance records for each car 95% updated records within 1 minute of completing reviews Delayed record updates affecting future inspections N Y
1.12 Final Departure Confirmation Yardmaster NetControl Updated maintenance records and NetControl system Final departure confirmation to the HDC 90% final confirmations within 2 minutes of updating records Delayed confirmations affecting overall yard operations N Y
📊 KPIs & Risk Register

KPIs

Terminal dwell under 24 hours Train speed above 20 mph 95% accuracy in visual inspections within 2 minutes per car 100% successful air brake tests within 5 minutes per car 90% clearance orders issued within 1 minute of receiving results 100% prepared tracks within 5 minutes of receiving clearance

Key Risks

Air brake test defect released to the road Defective brakes causing failed tests Incorrect interpretation of test data Delayed repairs affecting train schedules Track preparation delays due to equipment issues Delayed notifications affecting dispatch coordination Inaccurate or incomplete reviews Delayed record updates affecting future inspections

Swim Lanes

Yardmaster · 1.1, 1.7, 1.9, 1.12 Car Inspector (Carman) · 1.2, 1.3, 1.4, 1.5, 1.6, 1.10, 1.11 Switchman/Switch Foreman · 1.8