{"id":"W3172683300","doi":"10.1109/tits.2021.3082767","title":"Urban Air Mobility: History, Ecosystem, Market Potential, and Challenges","year":2021,"lang":"en","type":"article","venue":"IEEE Transactions on Intelligent Transportation Systems","topic":"Air Traffic Management and Optimization","field":"Engineering","cited_by":497,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"Toyota Motor Corporation; National Aeronautics and Space Administration","keywords":"Aviation; Business; Sustainability; Metropolitan area; Business model; Ecosystem services; Transport engineering; Engineering; Marketing; Geography; Ecosystem","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"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":[0.001074824,0.000202053,0.0001789199,0.001538404,0.00340544,0.007235713,0.0006989451,0.001299641,0.005489408],"category_scores_gemma":[0.001309686,0.0001541893,0.0001441209,0.003407378,0.007564354,0.008670463,0.003034257,0.001153434,0.0003091658],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.005001487,"about_ca_system_score_gemma":0.002483647,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.007773527,"about_ca_topic_score_gemma":0.02023281,"domain_scores_codex":[0.9993683,0.0003036329,0.00001947563,0.00008607593,0.00008385655,0.000138827],"domain_scores_gemma":[0.9994029,0.0002942701,0.00008053219,0.00003012016,0.00007018919,0.0001219612],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.00005578479,0.00005863013,0.01589468,0.0004482975,0.00001158283,0.001003894,0.06603727,0.0009842344,0.0005860607,0.7663239,0.01154533,0.1370503],"study_design_scores_gemma":[0.00000477284,0.00007693151,0.0189884,0.001080141,0.000009505441,0.000660177,0.2999221,0.001540843,0.0002750592,0.1076988,0.569708,0.0000353571],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"other","genre_gemma":"review","genre_scores_codex":[0.4055448,0.05408748,0.005664545,0.1048421,0.0005474958,0.00007985173,0.0004134538,0.00005574591,0.4287645],"genre_scores_gemma":[0.9734617,0.01784041,0.0008575927,0.001064081,0.0001789521,0.00003688323,0.00008467701,0.00001202187,0.006463619],"genre_candidate":"review","genre_consensus":null,"teacher_disagreement_score":0.007773527,"threshold_uncertainty_score":0.0362885,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02020842371448392,"score_gpt":0.1900098583928744,"score_spread":0.1698014346783905,"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."}}