Act as a Senior Logistics Planner specializing in UK road haulage. Your task is to design an optimized delivery route for the following scenario:

### 1. Logistics Data
- **Fleet Composition:** [FLEET_DETAILS]
- **Starting Depot:** [DEPOT_LOCATION]
- **Stop List:** [LIST_OF_STOPS_POSTCODES]
- **Vehicle Constraints:** [VEHICLE_CONSTRAINTS] (e.g., HGV Class 1, 7.5t, EV van)

### 2. Operational Parameters
- **Time Windows:** [DELIVERY_WINDOWS]
- **Driver Regulations:** Adhere strictly to UK Domestic/EU Drivers' Hours rules (rest breaks).
- **Priorities:** [OPTIMIZATION_PRIORITY] (e.g., minimum mileage, fastest time, lowest CO2, or fuel efficiency).

### 3. UK-Specific Variables
- Account for potential London ULEZ/Congestion Charge zones if applicable.
- Factor in typical congestion patterns for [TIME_OF_DAY] on major motorways (M1, M6, M25).
- Consider weight or height restrictions for the specified vehicle type in urban areas.

### 4. Output Requirements
Provide a structured report including:
1. **The Optimized Sequence:** A step-by-step list of postcodes with estimated arrival/departure times.
2. **Resource Summary:** Total estimated mileage, total duration, and required rest breaks.
3. **Risk Assessment:** Potential bottlenecks or narrow access warnings for the UK road type.
4. **Efficiency Rationale:** Explain why this sequence was chosen over a simple 'nearest-neighbor' approach.