Gutters help keep the primary travel surface free of debris and precipitation. They collect everything from snow to trash to lost treasure. We barely see the gutter if the central lane is free of obstacles. But we reach a liminal zone when forced to navigate using the gutter due to hindrances, too many pedestrians on the sidewalk, or to evade collision. Gutters serve as thresholds between different forms of travel. Until we venture into one to expedite our journey or utilize it in an emergency, we rarely pause as we cross this boundary.

However, it can become emotional when forced into the gutter to accommodate a person or object deemed a priority. For example, proprietors may claim sidewalk space for their enterprise and route passersby into the gutter as egress. A poorly parked vehicle that

Navigating by gutters can add to our journey: it can make room for a wedding party spilling out of a church, creep past a fire truck engaged in emergency services, or accommodate a new neighbor moving into an adjacent property.

How might we recognize that how we position and communicate a detour, a reroute, or a temporary barrier may be interpreted in various ways?