Livable streets are not just a planning slogan; they are the everyday environments that shape how we think, move, and connect. Bruce Appleyard’s Livable Streets 2.0 revives and expands the classic research on traffic’s invisible harms, showing how speed, volume, and street design quietly erode social ties and negatively impact the health of individuals living on heavily trafficked streets. The original book, published by his father in 1981, documented how lightly trafficked,