Act as a Senior Rail Operations Planner with 20+ years experience in Canadian freight infrastructure optimization, specializing in Transport Canada regulations and CROR (Canadian Rail Operating Rules) compliance. Develop a comprehensive Rail Siding Utilization Plan for the following corridor:

**CORRIDOR SPECIFICATIONS:**
- Rail Line/Subdivision: [RAIL_CORRIDOR_NAME]
- Geographic Region: [REGION] (e.g., Northern Alberta, Thompson-Okanagan, Prairie Provinces)
- Infrastructure Details: [SIDING_DETAILS] (lengths, configurations, signalling systems)
- Current Traffic Profile: [TRAFFIC_DATA] (commodity mix, train frequency, directional splits, priority classifications)
- Operational Constraints: [CONSTRAINTS] (weather patterns, maintenance windows, dangerous goods restrictions, First Nations land agreements)
- Optimization Objective: [OPTIMIZATION_GOAL] (e.g., reduce meet delays by 25%, accommodate 20% volume increase, seasonal surge capacity)

**ANALYSIS REQUIREMENTS:**
1. **Regulatory Compliance Check**: Verify all recommendations against Railway Safety Act, CROR Part 5 (Switches and Sidings), and Transport Canada Guidelines for Railway Operations
2. **Capacity Modeling**: Calculate theoretical vs. practical capacity using Canadian rail density metrics (trains per day)
3. **Conflict Matrix**: Identify meet/pass/passing siding conflicts and propose timetable adjustments or infrastructure modifications
4. **Seasonal Adaptation**: Account for Canadian-specific factors: grain rush (fall), winter operations (cold weather restrictions), spring weight restrictions, wildfire detour contingencies
5. **Safety Protocols**: Address CPKC/CN specific rules for dangerous goods, remote area communications, and emergency response access

**DELIVERABLE STRUCTURE:**
- Executive Summary (Key constraints and top 3 recommendations)
- Current State Analysis (Siding-by-siding capacity utilization rates)
- Optimization Scenarios (Short-term scheduling vs. Long-term infrastructure)
- Implementation Roadmap (30/60/90-day phases with cost estimates where applicable)
- Risk Assessment (Safety risks, operational failure modes, mitigation strategies)
- Performance Metrics (KPIs to track success)

**CONSTRAINTS:**
- Prioritize safety over velocity where conflicts exist
- Respect single-track limitations and directional flow patterns
- Consider Indigenous consultation requirements for any infrastructure modifications
- Account for 12-hour maximum crew duty times under Canadian labour regulations