Which supply chain innovation has had the greatest impact on reducing the 'last mile delivery' costs in the transportation industry over the past decade?

The transportation industry is constantly evolving its supply chain practices to improve efficiency and reduce costs. From sophisticated tracking systems to alternative fuel solutions, innovation drives competitive advantage. This trivia question focuses on a significant development that has transformed how transportation companies manage their logistics and delivery operations.

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Automated route optimization algorithms that reduce fuel consumption by up to 40%
Micro-fulfillment centers located in urban areas to decrease delivery distance
Blockchain technology for transparent tracking of shipments across multiple carriers
AI-powered demand forecasting to prevent overproduction and excess inventory