The Market Street Prototyping Festival is just finishing up in San Francisco. The festival, which is now in its 3rd year, is centered around urban interventions that can be rapidly prototyped and tested. The goal is to discover new ideas that could be used to transform and improve Market Street – the city’s civic spine. It is a joint effort of both the San Francisco Planning Department and the Yerba Buena Center for the Arts.

Here is a list of all the prototypes. You can “like” projects, but I wish they would have made it easier to filter and see which ones are the most popular.

One project that I liked is Vote With Your Feet. It consists of two doorways and a single crowdsourced YES/NO question above it. You vote by choosing a doorway. Once you walk through, you are then shown the results. Here’s a Boomerang video of it in action. I like it because it provides a frictionless way to acquire lots of ground-up feedback. Imagine placing something like this at the exit of a busy train station or transforming the existing doors.

Tactical urbanism can be a great mechanism for investigating and instigating positive change. This is hugely important considering how slow moving and bureaucratic city building can be. It’s not the same format, but NXT City here in Toronto has similar ambitions. They source new ideas for our public spaces from young people. I am thrilled that both of these initiatives exist.

This week Strong Towns has been running a great social media campaign called #BuildHereNow. 

The way it works is very simple. They asked people to get outside and take photos of vacant and/or underutilized properties in their town or city and post them to Twitter or Instagram using the hashtag #BuildHereNow. The goal was to start to identify properties that could “use a little love" and to encourage city builders who might need a little push to develop a particular property.

I’m a big fan of crowdsourcing information and I love the idea of digitally annotating buildings and spaces. In this case, it’s about pulling together the desires of the community,

Hashtags are a great way to quickly make something like this happen, but I would love to see a purpose-built tech platform do this in a more permanent way. Of course, it doesn’t just have to be about developing. Buildings are rich in information; hopefully so rich that a platform like this could survive.

If you think about it, property titles are already a form of annotating real property. So this isn’t really a new idea.