Why has the average delivery time for Line Man's package delivery service increased by 15 minutes in the Bangkok area this quarter?

Introduction

The recent 15-minute increase in average delivery time for Line Man's package delivery service in Bangkok is a critical issue that demands immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term fixes and long-term strategic implications.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be a recent change. When exactly did we start noticing this increase?

Why it matters: Pinpoints the timeframe for investigation. Expected answer: Within the last 3-4 weeks. Impact on approach: Narrows down potential causes to recent changes.

• Considering user segments, I'm wondering if this affects all types of deliveries equally. Are we seeing differences between food deliveries and package deliveries?

Why it matters: Helps isolate whether the issue is specific to certain types of deliveries. Expected answer: The increase is more pronounced in package deliveries. Impact on approach: Focuses investigation on package-specific factors.

• Given the geographic focus, I'm curious about any changes in Bangkok's infrastructure. Have there been any major road works or traffic pattern changes recently?

Why it matters: External factors could significantly impact delivery times. Expected answer: Some ongoing construction in central Bangkok. Impact on approach: Considers external factors in the analysis.

• Thinking about our delivery network, has there been any recent change in the number of active drivers or their schedules?

Why it matters: Supply-side changes could affect delivery times. Expected answer: No significant changes in driver numbers, but some scheduling adjustments. Impact on approach: Investigates potential impacts of scheduling changes.