IMPACT ON HOME STAIRWAY SAFETY REGULATION IN CANADA: WHEN EVIDENCE AND INDUSTRY-INFLUENCED GOVERNMENT POLICY CLASH
Bibliographic record
Abstract
Background Since about 1940 the National Building Code of Canada (NBCC) has been produced by the National Research Council of Canada (NRCC). However, in recent decades, home stairway design requirements have not been based on the best available research, including NRCC's own. Injury data for Canada's largest province (Ontario) suggest a rate of hospital-admitted stair-related injuries twice that of the USA (30 vs 15 per 100 000 population). Objectives With built environment regulation being a reliable mechanism for stair-related injury prevention, the objective is to improve NBCC requirements. Methods Beginning in the mid 1970s, NRCC research staff attempted to work with NBCC-development committees, both to apply what was scientifically known about stairway safety and to encourage new research. Many research-based, code-change proposals were submitted in 1992. In 2011, the International Conference on Stairway Usability and Safety established consensus on research evidence justifying improved requirements. Outcomes Key proposals from 1992 have not yet been processed. In 2010, several task groups were formed and many recommendations for code changes, on stairways, were drafted. However, task groups report to a committee that, since the 1970s, has been dominated by home builders highly resistant to changes. Significance NBCC-development policies and procedures, increasingly influenced by an industry-dominated Canadian Federal Government, pose old and new impediments to improved home design requirements and reduced, stairway-related injury tolls.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.062 | 0.176 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.009 | 0.016 |
| Science and technology studies | 0.014 | 0.016 |
| Scholarly communication | 0.019 | 0.008 |
| Open science | 0.006 | 0.009 |
| Research integrity | 0.007 | 0.013 |
| Insufficient payload (model declined to judge) | 0.006 | 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".