From arterial integration to segregated lanes: A 1988-2011 case study of cycling routes in Vancouver, British Columbia
Bibliographic record
Abstract
After more than two decades of cycling transportation planning, Vancouver's first segregated bike lanes represent a new and perhaps temporary stability in cycling route design in the city's dense downtown core.The 1988 Vancouver Comprehensive Bicycle Plan called for the integration of cyclists with arterial vehicle traffic via the research of John Forester (1987; 1994).However, the infrastructure for cyclists created since that time, including the city's local street bikeway network and the new downtown segregated bike lanes, has deviated significantly from this strategy.From a social construction of technologies perspective, I argue that this shift required the recognition of a new relevant social group in the social construction of the city's cycling infrastructure.The recognition of this group, the "near market" for cycling, helped produce the conditions necessary for more powerful relevant social groups to reconstruct the meaning of cycling routes in Vancouver to favour segregated designs.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.005 |
| Science and technology studies | 0.014 | 0.004 |
| Scholarly communication | 0.004 | 0.001 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".