US Class I Rail Process Wiki Dispatching & Train Movement › Track Warrant Control / Dark Territory
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RR-02 RR-02-02-01 — Track Warrant Control / Dark Territory

This process involves the control of track warrants in dark territory for train movements, ensuring safe and efficient rail operations.

🗺 BPMN Process Flow
RR-02-02-01 BPMN Diagram

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📋 Process Attributes
Process IDRR-02-02-01
Domain FamilyNETWORK & PLANNING
L1 DomainDispatching & Train Movement
L2 Process GroupTrack Warrant Control / Dark Territory
TriggerA train enters a dark territory requiring a track warrant for movement.
OutcomeSuccessful completion produces a safely dispatched train with all necessary clearances and authorizations to proceed through the dark territory.
SystemsNetControl I-ETMS Wabtrax Wayside defect detector network Machine Vision portals EHMS
Regulatory Hooks49 CFR Part 232 GCOR
📋 L4 Process Steps
StepNameRoleSystem InputOutputKPIPain Point / Risk Decision?Exception?
1.1 Receive Train Request Train Dispatcher NetControl / CADx Train movement request from yardmaster or conductor Acknowledgment of train request Response time to train requests under 5 minutes Delays in receiving train requests N N
1.2 Verify Track Conditions Control Operator Wabtrax, Wayside defect detector network Track condition data from Wabtrax and defect detectors Track condition report 100% accurate track condition assessment Inaccurate or delayed track condition reports Y Y
1.3 Prepare Track Warrant Train Dispatcher NetControl / CADx, I-ETMS Track condition report, train schedule Track warrant document Track warrant preparation time under 10 minutes Errors in track warrant documents N Y
1.4 Authorize Train Movement Train Dispatcher NetControl / CADx, I-ETMS Track warrant document Authorized train movement order 0% unauthorized train movements Unauthorized train movements Y N
1.5 Conduct Pre-Movement Inspection Car Inspector (Carman) Machine Vision portals, EHMS Train composition data, equipment health status Pre-movement inspection report 100% compliance with pre-movement inspections Non-compliance with pre-movement inspections Y Y
1.6 Dispatch Train Train Dispatcher NetControl / CADx, I-ETMS Authorized train movement order, pre-movement inspection report Train dispatch notification Train dispatch time under 5 minutes Delays in train dispatch N Y
1.7 Monitor Train Movement Control Operator I-ETMS, NetControl / CADx Train movement data Train movement status updates 95% accurate train location tracking Inaccurate or delayed train location data Y N
1.8 Review Train Arrival Train Dispatcher NetControl / CADx, I-ETMS Train arrival notification Arrival report 0% missed train arrivals Missed train arrivals Y N
1.9 Update Track Warrant Status Train Dispatcher NetControl / CADx, I-ETMS Arrival report Updated track warrant status 100% updated track warrant statuses Incorrect or delayed updates to track warrant statuses N Y
1.10 Notify Yardmaster of Completion Train Dispatcher NetControl / CADx, I-ETMS Updated track warrant status Completion notification to yardmaster Response time for completion notifications under 5 minutes Delays in notifying yardmasters of completion N Y
1.11 Review and Document Process Train Dispatcher NetControl / CADx, I-ETMS Process logs, train movement data Process review report 100% documented process reviews Incomplete or inaccurate process documentation Y N
1.12 Update Train Schedule Train Dispatcher NetControl / CADx, I-ETMS Process review report Updated train schedule 0% missed train schedules Missed or inaccurate train schedules Y N
📊 KPIs & Risk Register

KPIs

Response time to train requests under 5 minutes Track warrant preparation time under 10 minutes Train dispatch time under 5 minutes 95% accurate train location tracking 0% missed train arrivals 100% updated track warrant statuses Response time for completion notifications under 5 minutes 100% documented process reviews 0% missed train schedules

Key Risks

Air brake test defect released to the road Inaccurate or delayed track condition reports Non-compliance with pre-movement inspections Unauthorized train movements Missed train arrivals

Swim Lanes

Train Dispatcher · 1.1, 1.3, 1.4, 1.6, 1.8, 1.9, 1.10, 1.12 Control Operator · 1.2, 1.7 Car Inspector (Carman) · 1.5
Independently compiled from public sources. Not affiliated with, sponsored by, or endorsed by Union Pacific or any other railroad. Illustrative of US Class I practice; every system, regulation, role and metric named here traces to a sourced entry in registries/.