{"id":"W2025547609","doi":"10.1289/ehp.0900595","title":"Healthy Neighborhoods: Walkability and Air Pollution","year":2009,"lang":"en","type":"article","venue":"Environmental Health Perspectives","topic":"Urban Transport and Accessibility","field":"Social Sciences","cited_by":283,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Walkability; Environmental health; Air pollution; Environmental science; Geography; Urban sprawl; Built environment; Pollution; Air quality index; Land use; Medicine; Ecology; Meteorology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003299847,0.0001928927,0.0002038186,0.000564647,0.0005181071,0.0009641658,0.0003065001,0.0003965181,0.004001169],"category_scores_gemma":[0.001959615,0.00009472058,0.0001830288,0.0008141521,0.000481621,0.0004042269,0.0007079131,0.0004151214,0.0001963337],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007374521,"about_ca_system_score_gemma":0.0006275797,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.05003188,"about_ca_topic_score_gemma":0.07422116,"domain_scores_codex":[0.9997179,0.00007351069,0.00001991864,0.00005940249,0.00007110354,0.0000580967],"domain_scores_gemma":[0.9983842,0.0001705871,0.000606233,0.00006651407,0.000233026,0.0005393786],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00009746481,0.00009983248,0.9811879,0.00008112748,0.0001257076,0.0001124105,0.0003179369,0.0002845482,0.0001482939,0.0005532954,0.001464166,0.01552727],"study_design_scores_gemma":[0.000002274674,0.00003402503,0.9983037,0.0000257346,0.00002440997,0.00007446136,0.0001956017,0.0001028017,0.00002192057,0.0003666655,0.0008452719,0.000003143925],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9883806,0.002972817,0.0004180162,0.001202155,0.00003772003,0.00003533612,0.001258695,0.00002079188,0.00567391],"genre_scores_gemma":[0.9986753,0.0004018432,0.0001485305,0.00004787201,0.00001362449,0.000007422666,0.0002975122,0.000002339263,0.0004056521],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05003188,"threshold_uncertainty_score":0.09948128,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01281295936322201,"score_gpt":0.3134951273273344,"score_spread":0.3006821679641123,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}