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Record W46615370

Predicting the level of use of underground routes in a multi-level urban environment

2010· dissertation· en· W46615370 on OpenAlexaboutno aff
Wenyuan Zhang

Bibliographic record

VenueSpectrum Research Repository (Concordia University) · 2010
Typedissertation
Languageen
FieldEngineering
TopicEvacuation and Crowd Dynamics
Canadian institutionsnot available
Fundersnot available
KeywordsPedestrianDowntownTransport engineeringPreferencePath (computing)Computer scienceGeographyOperations researchEngineeringMathematicsStatistics
DOInot available

Abstract

fetched live from OpenAlex

Movement in dedicated pedestrian networks in urban environments is an important area for study in the field of urban planning. Researchers have investigated various related factors in path choice with regard to these settings. However, the preference of pedestrians for underground and surface routes in a multi-level urban system is still relatively unknown, making it difficult to model pedestrian dynamics in such complex spatial systems. The purpose of this thesis project is firstly to investigate the factors affecting pedestrian path choice in a multi-level urban environment and secondly, to propose an assignment model for pedestrian circulation in a multi-level system, with parameters from the first study. The results obtained from three operating tunnels in downtown Montreal show that seasonal change has an effect on pedestrian preference for path choices, suggesting that weather conditions are a major factor related to the use of underground routes. Although there is no statistically significant relationship between personal or systematic factors and preference for routes, the influence of systematic factors can be observed in the three cases. The assignment model is applied in a case study of Concordia tunnel system under construction. This study contributes to the investigation of factors affecting path choices, surface or underground routes, and proposes a new model to project pedestrian flow.

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)0.000
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 score0.180
Threshold uncertainty score0.997

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
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 head0.087
GPT teacher head0.279
Teacher spread0.192 · 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

Citations0
Published2010
Admission routes1
Has abstractyes

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