Status of North American LRT Systems: Year 2012 Update
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This paper reports on changes and additions to light rail transit (LRT) and streetcar systems in the United States and Canada that have occurred since the last National Light Rail Conference was held in 2009. There were two completely new start-ups during this period: light diesel multiple-unit (DMU) lines in Austin (2010) and Denton County, Texas (2011), and an electric light rail line in Norfolk (2011). In addition, several systems extended existing lines: Dallas, Edmonton, Jersey City (Bayonne), Los Angeles, New Orleans, Pittsburgh, Portland (streetcar), Salt Lake City, Sacramento, and San Francisco. Beyond 2012, further LRT and streetcar extensions have been committed and will be completed in Calgary, Charlotte, Dallas, Denver, Edmonton, Houston, Los Angeles, Minneapolis–St. Paul, Ottawa (light DMU), Phoenix, Portland, Sacramento, Salt Lake City, San Diego, Seattle, and Tucson. New streetcar lines are under construction in Atlanta, Cincinnati, and Washington, D.C. These developments are discussed in the text and reflected in the accompanying data tables.
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.
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 it