{"launch_date":"2022-03-17","avg_timestamp_last_100_labels":"2025-08-11T04:54:32.030Z","km_explored":170.68860341969676,"km_explored_no_overlap":57.75040256880301,"km_explored_multiple_users":47.500176008945715,"km_explored_single_user":10.250226559857296,"km_explorable":57.70046670558463,"km_by_status":{"open":57.70046670558463,"no_imagery":0.5654174405165029,"closed":0,"disabled":0},"user_counts":{"all_users":406,"labelers":183,"validators":297,"registered":53,"anonymous":339,"turker":0,"researcher":13},"labels":{"label_count":13595,"label_count_with_severity":7435,"avg_label_timestamp":"2022-09-01T19:36:41.513178-07:00","avg_age_of_image_when_labeled":"1135 days","stddev_label_timestamp":"236 days","stddev_age_of_image_when_labeled":"816 days","CurbRamp":{"count":1892,"count_with_severity":1812,"severity_mean":1.1572847682119205,"severity_sd":0.46416228493758244},"NoCurbRamp":{"count":823,"count_with_severity":767,"severity_mean":2.7157757496740547,"severity_sd":0.5893297443345008},"Obstacle":{"count":325,"count_with_severity":300,"severity_mean":2.0566666666666666,"severity_sd":0.8997150546073904},"SurfaceProblem":{"count":4006,"count_with_severity":3917,"severity_mean":1.2961450089354098,"severity_sd":0.6148635194141582},"Other":{"count":12,"count_with_severity":7,"severity_mean":2.142857142857143,"severity_sd":0.37796447300922725},"Occlusion":{"count":162,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"NoSidewalk":{"count":5679,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"Crosswalk":{"count":675,"count_with_severity":632,"severity_mean":1.1661392405063291,"severity_sd":0.5091171622134516},"Signal":{"count":21,"count_with_severity":null,"severity_mean":null,"severity_sd":null}},"validations":{"combined":{"total_validations":35288,"Overall":{"validated":11259,"agreed":10607,"disagreed":652,"accuracy":0.9420907718269829,"has_a_validation":11732},"CurbRamp":{"validated":1834,"agreed":1760,"disagreed":74,"accuracy":0.9596510359869138,"has_a_validation":1892},"NoCurbRamp":{"validated":716,"agreed":501,"disagreed":215,"accuracy":0.6997206703910615,"has_a_validation":822},"Obstacle":{"validated":295,"agreed":224,"disagreed":71,"accuracy":0.7593220338983051,"has_a_validation":325},"SurfaceProblem":{"validated":3835,"agreed":3743,"disagreed":92,"accuracy":0.9760104302477184,"has_a_validation":4006},"Other":{"validated":1,"agreed":1,"disagreed":0,"accuracy":1,"has_a_validation":1},"Occlusion":{"validated":1,"agreed":1,"disagreed":0,"accuracy":1,"has_a_validation":2},"NoSidewalk":{"validated":3895,"agreed":3762,"disagreed":133,"accuracy":0.9658536585365853,"has_a_validation":3988},"Crosswalk":{"validated":662,"agreed":599,"disagreed":63,"accuracy":0.904833836858006,"has_a_validation":675},"Signal":{"validated":20,"agreed":16,"disagreed":4,"accuracy":0.8,"has_a_validation":21}},"human":{"total_validations":27413,"Overall":{"validated":10839,"agreed":10154,"disagreed":685,"accuracy":0.9368022880339515,"has_a_validation":11348},"CurbRamp":{"validated":1762,"agreed":1665,"disagreed":97,"accuracy":0.9449489216799092,"has_a_validation":1801},"NoCurbRamp":{"validated":694,"agreed":507,"disagreed":187,"accuracy":0.7305475504322767,"has_a_validation":794},"Obstacle":{"validated":296,"agreed":226,"disagreed":70,"accuracy":0.7635135135135135,"has_a_validation":318},"SurfaceProblem":{"validated":3554,"agreed":3408,"disagreed":146,"accuracy":0.9589195272931907,"has_a_validation":3789},"Other":{"validated":1,"agreed":1,"disagreed":0,"accuracy":1,"has_a_validation":1},"Occlusion":{"validated":1,"agreed":1,"disagreed":0,"accuracy":1,"has_a_validation":2},"NoSidewalk":{"validated":3895,"agreed":3762,"disagreed":133,"accuracy":0.9658536585365853,"has_a_validation":3988},"Crosswalk":{"validated":616,"agreed":568,"disagreed":48,"accuracy":0.922077922077922,"has_a_validation":634},"Signal":{"validated":20,"agreed":16,"disagreed":4,"accuracy":0.8,"has_a_validation":21}},"ai":{"total_validations":7875,"Overall":{"validated":6244,"agreed":5822,"disagreed":422,"accuracy":0.9324151185137732,"has_a_validation":7720},"CurbRamp":{"validated":1744,"agreed":1672,"disagreed":72,"accuracy":0.9587155963302753,"has_a_validation":1892},"NoCurbRamp":{"validated":610,"agreed":382,"disagreed":228,"accuracy":0.6262295081967213,"has_a_validation":822},"Obstacle":{"validated":32,"agreed":0,"disagreed":32,"accuracy":0,"has_a_validation":325},"SurfaceProblem":{"validated":3329,"agreed":3307,"disagreed":22,"accuracy":0.9933914088314809,"has_a_validation":4006},"Other":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"Occlusion":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"NoSidewalk":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"Crosswalk":{"validated":529,"agreed":461,"disagreed":68,"accuracy":0.8714555765595463,"has_a_validation":675},"Signal":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0}}},"ai_stats":{"Crosswalk":{"human_majority_vote":{"ai_yes_human_concurs":423,"ai_yes_human_differs":3,"ai_no_human_differs":15,"ai_no_human_concurs":36},"admin_majority_vote":{"ai_yes_human_concurs":351,"ai_yes_human_differs":3,"ai_no_human_differs":10,"ai_no_human_concurs":34}},"Overall":{"human_majority_vote":{"ai_yes_human_concurs":5170,"ai_yes_human_differs":132,"ai_no_human_differs":141,"ai_no_human_concurs":207},"admin_majority_vote":{"ai_yes_human_concurs":2672,"ai_yes_human_differs":72,"ai_no_human_differs":65,"ai_no_human_concurs":193}},"SurfaceProblem":{"human_majority_vote":{"ai_yes_human_concurs":2908,"ai_yes_human_differs":61,"ai_no_human_differs":4,"ai_no_human_concurs":17},"admin_majority_vote":{"ai_yes_human_concurs":1239,"ai_yes_human_differs":36,"ai_no_human_differs":2,"ai_no_human_concurs":8}},"Obstacle":{"human_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":6,"ai_no_human_concurs":25},"admin_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":3,"ai_no_human_concurs":22}},"NoCurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":297,"ai_yes_human_differs":38,"ai_no_human_differs":95,"ai_no_human_concurs":83},"admin_majority_vote":{"ai_yes_human_concurs":179,"ai_yes_human_differs":29,"ai_no_human_differs":36,"ai_no_human_concurs":87}},"CurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":1542,"ai_yes_human_differs":30,"ai_no_human_differs":21,"ai_no_human_concurs":46},"admin_majority_vote":{"ai_yes_human_concurs":903,"ai_yes_human_differs":4,"ai_no_human_differs":14,"ai_no_human_concurs":42}}}}