This week, we go around the world to see practical examples of street experiments in action. In doing so, we see how experiments can be categorized into 4 different typologies in ascending functional complexity: simple street re-markings, alternative uses of parking spaces, reconversion of sections of streets, and the opening of entire streets to uses other than motorized traffic. We then pose the question, "How can tactical urbanism help create healthier streets?" leading us to find that bottom-up initiatives can be powerful instigators of change.

This week explores how street experiments are implemented, from start to finish, and we will learn about the challenges along the way. We find that street experiments are often the starting point for the transition of public space, and these experiments give people the chance to experience, to really feel the changes immersively, rather than just seeing plans on a board. We learn how to approach strategic problems by using tactical urbanism techniques, and how colorful and eyecatching spaces can do its own marketing. Finally, we make the connection between culture and street design, framing experiments in the context of "mobility culture" and asking us how real world laboratories can explore existing culture and explore new cultures.

This week, we ask "are we really challenging mobility systems with these relatively small scale experiments?" Despite all the colorful experimentation taking place around the world, not all experiments lead to permanent changes. We will explore how experiments can serve as short term actions through which alternative structure, cultures and practices are explored. We then look at the five characteristics of the city street experiments: Are they... radical, change-driven, feasible, strategic, and communicative? They are an initial step in the assessment framework since street experiments are so complex. Finally, we are challenged to involve citizens in the experimentation process, and you will learn that buy-in of the community is essential to the long-term success of making experiments permanent.