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Record W2026759737 · doi:10.2495/sdp-v5-n2-114-129

Potential demand for new high speed rail services in high dense air transport corridors

2010· article· en· W2026759737 on OpenAlexvenueno aff
Concepción Román, Juan Carlos Martı́n

Bibliographic record

VenueInternational Journal of Sustainable Development and Planning · 2010
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicAviation Industry Analysis and Trends
Canadian institutionsnot available
Fundersnot available
KeywordsInterurbanTransport engineeringPublic transportService (business)Level of serviceOrder (exchange)BusinessEnvironmental economicsComputer scienceEngineeringEconomicsFinance

Abstract

fetched live from OpenAlex

Demand analysis is a key element in the evaluation of public policies. The ex ante evaluation of large scale projects involving for example new high speed rail (hSr) services requires the estimation of reliable choice models to predict ridership shares of the new alternatives and to identify the main sources for traffic diversion and traffic generation. This paper analyses and forecasts potential demand for hSr services in the high dense air transport route: the line madrid-Barcelona. The model aims to explain changes in the demand for interurban rail and air transport as a result of substantial improvements in the level of service due to the introduction of the hSr. results highlight that the expected volume of demand for the hSr in the corridor is not enough to guarantee a positive social benefit of this project.

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 imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.038
Threshold uncertainty score0.456

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.013
GPT teacher head0.225
Teacher spread0.212 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations13
Published2010
Admission routes1
Has abstractyes

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