A 'walkability study' can be a powerful tool to help cities and towns identify transformative strategies to welcome and protect pedestrians on their streets — and craft a plan to put those approaches into action. But  what would it take to do this critical analysis in every American community that needs it?  On this episode of The Brake, we sit down with Jeff Speck and Chris Dempsey of the new firm Speck/Demspey, which is trying to do just that. And along the way, we talk about some of the low-cost ways that any community can get a little more walkable, whether or not they bring in the pros. (Hint: it might be time to trade some traffic lights for stop signs.)