Bibliographic record
Abstract
This article describes the replacement of a 100-year-old, substandard railroad bridge in Greenwich, Connecticut. The Arch Street Bridge carries an average of 215 trains a day on four tracks over a major connector road. The goals of the project were to replace the old bridge, extend the elevated pedestrian platforms over Arch Street to allow for boarding and embarking of 10 passenger train cars, widen Arch Street below the bridge to improve traffic operations and provide safer pedestrian movement, provide stairs to access the extended pedestrian platforms, and upgrade the Greenwich railroad station to improve accessibility. The new bridge is a 100-foot-long simple-span, steel plate girder structure with a composite 13-inch-thick reinforced concrete ballasted deck with membrane waterproofing. The biggest challenge of the project was to replace the existing bridge while maintaining heavy railroad, vehicular and pedestrian loads in the area. To meet this challenge, an innovative technique was implemented involving the use of micropiles to support the foundations of the new bridge and top-down construction to accommodate the widening of the road and replacement of the bridge.
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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| 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".