Last-Mile Delivery Strategy

I need to optimize our last-mile delivery strategy. Current situation:

Delivery volume: [Daily/weekly deliveries]
Service area: [Geographic coverage]
Delivery model: [Own fleet, carriers, crowdsourced, mix]
Delivery options offered: [Same-day, next-day, standard]
Average cost per delivery: [Current cost]
Delivery success rate: [First attempt success %]
Customer satisfaction: [Current scores]
Urban vs. rural mix: [% of each]
Special requirements: [White glove, installation, etc.]

Please recommend:
1. Delivery network optimization
2. Route planning approach
3. Delivery window management
4. Alternative delivery options (lockers, pickup points)
5. Technology for customer communication
6. Driver productivity improvements
7. Cost and service level tradeoffs