 The problems in this lab are very hard problems that people have been trying to tackle for years. There's a huge gap between what we do as researchers and what practitioners can actually do with our work. Interactive visualization is actually a very powerful tool to give human decision makers access to large and complex amounts of data and also to give them more intuitive access to the models that we build. And so by presenting this data visually, they get a real visceral feeling for it and that's really valuable if you have decision makers in different parts of your organization. As a product journeys from warehouse shelf to doorstep, the last mile of delivery is the final step of the process, the point at which the package finally arrives at your door. It is both the most expensive and time-consuming part of the shipping process. Estimates of the last mile costs range from 40 to 50% of the entire supply chain cost. Current developments in last mile logistics are changing the operational status quo. Increasing urbanization leads to a higher demand density and more complex operations. The growth of e-commerce creates higher delivery volumes and shorter lead times, combined with a consumer expectation of free delivery. Sustainability concerns force companies to rethink their strategies and operations. Companies are investing heavily in new operational models, process improvements and technologies to address this. We explore these developments in our research. In mega cities, as large parcel trucks become increasingly ill-suited to navigate today's dense urban neighborhoods, we are researching new operational models to address increased urbanization. Perhaps you've already seen aggregated demand solutions such as parcel lockers and public drop-off points being deployed. Two-tiered solutions such as truck and drone or truck and bike are becoming more common. Multieshalon cooperative systems are an innovative extension of current operational models, utilizing separate vehicle technologies simultaneously like a truck and an aerial drone. In addition to researching new operational models, we are also supporting supply chain design for omnichannel distribution, the combination of brick and mortar and online deliveries, when companies leverage their store network for online distribution. We combine facility location models with last mile distribution to leverage store networks. The interactive environment of the cave lab enables route level data visualization and exploration. The digital dimension of urban logistics should not be overlooked. Data collection lies at the heart of current and future last mile operations. These visualizations are informed by route optimization research from the MIT mega city logistics lab. Sustainability is the final theme of our last mile research agenda. The last steps in a typical delivery chain are a significant contributor to negative externalities associated with urban logistics, both social and environmental. We can not only visualize routes and optimize them based on costs, but we can simulate their impact on the environment and society. By convening stakeholders in a facilitated co-design process, the cave lab aligns intuition and accelerates decision-making in order to help us grow our research agenda and help the center have more impact on the real world with our industry partners.