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Evaluation of the Level of Service of “Vía Expresa Paseo de la República” (Peru): Canada - Javier Prado Section

2021· article· es· W4200621161 on OpenAlexaboutno aff
Edward Santa María Dávila, Marck Steewar Regalado Espinoza, Eli Beltran Ccanto, Israel Maravi Contreras, Jhoel Huamani Torre, Lesly Scarlet Ortiz Galindo, Sandra Rojas Rodriguez

Bibliographic record

Venuenot available
Typearticle
Languagees
FieldSocial Sciences
TopicTransportation Planning and Optimization
Canadian institutionsnot available
Fundersnot available
KeywordsSection (typography)HumanitiesComputer scienceArtOperating system

Abstract

fetched live from OpenAlex

This research evaluates the level of service of one of the main roads in Lima (Peru), which is “Vía Expresa Paseo de la República”. Specifically, the section of this road between Canada and Javier Prado Avenues was evaluated. For this, the first step was to film the vehicular flow at both ends of the section studied, in order to obtain the number of vehicles that transited every certain period of time, which allows to measure the Traffic Flow (between 1,200 to 2,100 veh/h/lane). Then, the time taken by the vehicles to move a certain distance defined in the films was estimated, which allowed estimating, with a harmonic average, the Space Mean Speed (between 20 and 65 km/h). After that, using the Greenshields equation and the fundamental traffic equation, a regression algorithm in R language is used to identify the theoretical quadratic relationship between both measured variables and thus obtain the characteristics of the road, which are the Free-Flow Speed (between 70 to 90 km/h) and the Jam Density (between 85 to 110 veh/km). In this way, with the measured parameters, the HCM 2000 standard is used to know the level of service of the evaluated road, obtaining as a result an F level.

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)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.433
Threshold uncertainty score0.860

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.003
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.001

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 head0.064
GPT teacher head0.333
Teacher spread0.269 · 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 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".

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Citations0
Published2021
Admission routes1
Has abstractyes

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