A Case Study on the City of Calgary Rangeview Sanitary Trunk Pipeline Project
Bibliographic record
Abstract
The purpose of this two-part case study is to highlight the Rangeview Sanitary Trunk Pipeline Project (RST) currently under construction in Calgary, AB, Canada. Once completed, the system will provide wastewater services for projected flows from Calgary’s expanding population. The new pipeline will connect to the existing Cranston Sanitary Chamber before travelling through the wastewater system to the treatment plant. This first part of the case study will explore project development specific to the trenchless scope of work including construction feasibility, geotechnical investigations, engineering design and development, permitting, and the procurement process. In addition, shaft design will be thoroughly covered as the system utilized involved an innovative construction method of a segmental shaft using a cutting edge and jacks. A second and complimentary case study will be submitted at a later date that will explore the complete microtunnelling construction execution with regard to equipment, manpower, scheduling, safety, and overall lessons learned during field operations.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.011 | 0.003 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.003 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".