Bibliographic record
Abstract
Purpose Single-family houses in Vancouver that were built prior to 1940 are a cache of wood from British Columbia (BC) old-growth forests. The purpose of this paper is to discuss the environmental and heritage values of maintaining this finite resource, assess the current policy and regulatory efforts of the City of Vancouver to save this resource and recommend further opportunities to improve and expedite these efforts. Design/methodology/approach Using the City of Vancouver as a case study, this paper identifies effective policy practices to encourage and facilitate salvaging and reusing old wood resources. Additionally, the paper discusses the key challenges and risks that need to be addressed for these policy approaches to succeed. Findings Pre-1940 houses constitute about 40 percent of single-family houses that have been demolished in Vancouver in the past few years. The City of Vancouver enacted the Green Demolition Bylaw in 2014 requiring a minimum of 75 percent diversion of demolition waste. However, wood from these houses has been mainly chipped and recycled as biomass fuel or landscape mulch rather than reused. The result shows that regulatory enforcement along with support for infrastructure development may be crucial to protect the remainder of this valuable heritage resource. Originality/value This paper considers the environmental and heritage values of wood elements used in old houses and recommends further policy and regulatory interventions to maximize wood salvaging and reuse. Since protecting entire houses may not be always feasible, retention of wood elements is proposed as an alternative path for maintaining and cherishing this ancient and irreplaceable heritage.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".