A dashed-line bike lane marked on each side of a narrow, typically two-way, roadway with no dedicated centerline, where vehicles are expected to cross into the bike lane space temporarily to pass oncoming traffic, yielding to any cyclist present.
Working assessment: this pattern’s status reflects a preliminary Commonway System judgment call, pending final review.
On a roadway too narrow to accommodate a centerline plus two conventional bike lanes, an advisory bike lane provides a visual cue and priority framework for cyclists while allowing the roadway’s limited width to be shared flexibly by low-volume, low-speed traffic. This pattern exists to document this specific narrow-roadway treatment and its dependence on low traffic conditions to function safely.
Conventional Bike Lane (ELM-CBL-34) (a related but structurally distinct facility type); relevant Local Segment patterns where roadway width is most constrained
Unsourced claim
Formal citations for this pattern have not yet been compiled from primary sources.