MétaCan
Menu
← Back to cohort
Record W7132985749

Express bus modelling for the GTA

2003· dissertation· W7132985749 on OpenAlexaboutno aff
Md Mamun

Bibliographic record

VenueTSpace · 2003
Typedissertation
Language
FieldSocial Sciences
TopicTransportation Planning and Optimization
Canadian institutionsnot available
Fundersnot available
KeywordsLocal busBus networkRepresentation (politics)Mode (computer interface)Transit (satellite)Public transportSoftwareSystem bus
DOInot available

Abstract

fetched live from OpenAlex

EMME/2 software is extensively used in the planning of urban roads and transit networks. But unfortunately, current EMME/2-based models are not capable of properly representing express bus services in the Greater Toronto Area (GTA). This study focuses on finding a solution to this problem. Three approaches are investigated. First, different combinations of user adjustable parameters of EMME/2 are explored to see if they result in improved express bus assignments. Second, adjustments to the representation of the express bus attributes (artificially decreasing speeds and increasing headways for the express bus routes) are investigated. Finally, a sub-mode split model is developed in which original demand matrix is split into two demand matrices (one for express bus and other for local bus) and assigned separately to the GTA transit network in EMME/2. For this purpose logit mode choice models are developed and estimated to predict express bus and local bus demand.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.914
Threshold uncertainty score0.172

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0130.002

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 head0.049
GPT teacher head0.369
Teacher spread0.320 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
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

Citations0
Published2003
Admission routes1
Has abstractyes

Explore more

Same venueTSpace→Same topicTransportation Planning and Optimization→French-language works237,207→