Accessibility assessment of three housing states in Barcelona's Metropolitan Area tackling the 15-minute city concept
Bibliographic record
Abstract
Almost half of Barcelona’s Metropolitan Area residents have difficulties accessing services and facilities every day. Taking this into account and adding the fact that a huge percentage of these people are forced to use motorized vehicles as their transportation, the concept of the 15-minute city remains cut off from reality. This idea describes an urban model which guarantees short distances to the amenities reachable by foot and bicycle in less than a quarter of an hour. In this context,one of the most common built urban morphologies is housing states, designed with the only function to dwell and letting behind all the other daily basic needs. These residential blocks are the perfect representation of an antithesis of the sustainable and healthy urban planning model mentioned before. From this framework, this project seeks to measure the level of accessibility in three housing estates in Barcelona's Metropolitan Area (Can Ros, Sud-Oest del Besòs and Canaletes) with the aim of evaluating the lack of reachability to basic equipments and services. Also, it is intended to analyze if there exists any relation with the level of accessibility to public transport. All the research has been performed following the 15-minute city concept methodology and the standards proposed by the Diputació de Barcelona to ensure the equipments needed in the area per inhabitant. After applying this many-sided methodology, the results show that none of the studied areas reaches the required amount of accessibility to fundamental amenities. Nevertheless, some differences between the sites reveal a correlation with their locations considering the distance to the city centre.Moreover, the relation of the accessibility to services with public transport is not determined by the given factors, letting a path for future research. Besides the results,and looking forward to further applications, a novel methodology for rating the level of accessibility to services is described in order to to be replicable.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".