A Linear Motor Design Provides Close and Secure Vehicle Separation of Many Transit Vehicles on a Guideway
Bibliographic record
Abstract
Automated urban transit systems have been proposed for some time with limited attention to propulsion and control of many vehicles on a guideway. This is a particular critical requirement for personal rapid transit systems and an urban maglev transit system proposed by MagneMotion, the M3. The linear synchronous motor (LSM), as proposed for M3, has severe limitations. A modification of LSM is described, called "individual pole excitation linear motor" (IPELM), to meet the requirements of M3. The armature of IPELM consists of individual coils, incorporated in the guideway, which are powered separately under central control. An outline of IPELM design is presented for consideration and further development. Safety issues are reviewed for this linear motor. The main advantage of IPELM over LSM is the ability to control many vehicles on the same guideway with a very short headway and space between vehicles. A further development of IPELM makes it possible to design a continuous nonstop transit system with a high schedule speed between many online stations
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 0.005 |
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".