Transit Alignment Corridor
CDR-TAC-06 Transit Alignment Corridor
Working assessment: this pattern’s status reflects a preliminary Commonway System judgment call, pending final review.
#Why this pattern exists
A fixed transit alignment is not just another lane, it constrains cross-section width, access point spacing, and intersection design continuously along the corridor in a way that a bus running in mixed traffic does not. Treating each segment along a transit alignment independently risks a cross-section that works at one point and fails at the next (a dedicated lane that disappears and reappears, station spacing that does not match access needs).
#Key considerations
- Cross-section allocation for the transit alignment should be consistent for the corridor’s length, not renegotiated segment by segment
- Station/stop placement should be planned as a corridor-wide sequence, not sited independently at each segment
- Where the alignment shares the roadway with general traffic, note the applicable Modal Hierarchy exception justification this requires
#Related patterns
Transit Corridor (Segment-scale character type, the segment-level treatment this corridor pattern coordinates); Modal Hierarchy mechanism (Guide)
Unsourced claim
Formal citations for this pattern have not yet been compiled from primary sources.