The drivers are the local cartographers. They don’t need GPS to navigate the winding residential crescents; they know the shortcuts that avoid the school-run gridlock and they know exactly which potholes to swerve around on the outskirts of the forest. They are the keepers of neighborhood lore—they know who lives in the house with the overgrown ivy, which pub is hosting the noisy karaoke night, and why traffic is backed up all the way to the roundabout.