Bibliographic record
Abstract
The Docklands Railway in London, UK, opened in 1987 with driverless trains using an automatic train operation (ATO) system. The railway was upgraded with the opening of the new control centre at Poplar, reduced signal block lengths, the installation of more trackside and in-train equipment and the implementation of an automatic train supervision (ATS) system. Planning for the Beckton extension provided an opportunity for resignalling. In 1990 Alcatel was awarded a contract for the implementation of a moving block signalling system using Alcatel's Seltrac product, originally installed on Vancouver's Sky Train. The system consists of a central controller continuously communicating with all vehicles in the control area. The control area is divided into 6.25-m sections and the controller can follow trains to this degree of accuracy. Seltrac controls both automatic and manually driven modes and a restricted emergency shunt mode. In 1996, the moving block system was moved onto desk top computers from mini-computers. Each vehicle has a vehicle on-board controller communicating with the vehicle control centre. (A)
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 | 0.000 |
| 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".