Twinned 450 mm Waterline Provides Future Water Needs for YVR Groundside Developments and the Iona Island Wastewater Treatment Plant
Bibliographic record
Abstract
The Vancouver International Airport (YVR) is undergoing a project to realign the westernmost 2.2 km section of Ferguson Road on the Sea Island. This involves extending the existing Ferguson Road at McDonald Road to provide an improved corridor with wider travel lanes, paved bike shoulders, and a new multi-use pathway to accommodate all road users, the installation of two 450 mm Polyvinyl Chloride (PVC), fully restrained watermains and associated appurtenances, and drainage, electrical, and communication infrastructure to service future developments along Ferguson Road and the adjacent wastewater treatment plant on Iona Island. The Project addressed several design and construction considerations and constraints that ultimately impacted the final geometry, configuration, and material selection of the proposed watermain infrastructure. This paper summarizes how the noted considerations and constraints influenced the final design of the twin watermains, how the watermain material and restraint system was selected, and the Project construction progress.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.022 | 0.004 |
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".