The growth of e-commerce and the expectation of immediate delivery is transforming how we buy everyday goods. We have become accustomed to getting what we want, when and where we want it. Thus, the logistics of moving goods around—namely warehousing, transportation, and delivery—are becoming some of the most critical development challenges for rapidly growing cities around the world.

And cities are only getting more crowded: The United Nations estimates that two-thirds of the world’s population will live in urban areas by 2050. Congestion, smog, and noise are getting worse. To help mitigate these problems, some cities are introducing regulations that require new models of transport, such as pedestrian-only or reduced-emissions zones, which can create implications for how people get around and how goods are delivered.