{"launch_date":"2021-09-03","avg_timestamp_last_100_labels":"2026-08-25T19:02:28.533Z","km_explored":2927.7304707427697,"km_explored_no_overlap":2435.842556059073,"km_explored_multiple_users":358.8321047278792,"km_explored_single_user":2077.010451331194,"km_needs_reaudit":0,"km_explorable":13512.484212207684,"km_by_status":{"open":13512.484212207684,"no_imagery":1550.5305818510355,"closed":27390.833099441003,"disabled":0},"user_counts":{"all_users":3608,"labelers":1586,"validators":3070,"registered":1411,"anonymous":2167,"turker":0,"researcher":29},"labels":{"label_count":167471,"label_count_with_severity":138342,"avg_label_timestamp":"2024-10-11T23:05:45.873416-07:00","avg_age_of_image_when_labeled":"1127 days","stddev_label_timestamp":"431 days","stddev_age_of_image_when_labeled":"1079 days","CurbRamp":{"count":78318,"count_with_severity":75500,"severity_mean":1.16117880794702,"severity_sd":0.44094734740952396},"NoCurbRamp":{"count":5912,"count_with_severity":4789,"severity_mean":2.19419503027772,"severity_sd":0.8331326352108199},"Obstacle":{"count":8143,"count_with_severity":7295,"severity_mean":2.004660726525017,"severity_sd":0.8353514893024117},"SurfaceProblem":{"count":25094,"count_with_severity":23778,"severity_mean":1.6529985701068215,"severity_sd":0.7191786636169999},"Other":{"count":486,"count_with_severity":375,"severity_mean":1.5626666666666666,"severity_sd":0.8213028213884799},"Occlusion":{"count":1725,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"NoSidewalk":{"count":14531,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"Crosswalk":{"count":27503,"count_with_severity":26588,"severity_mean":1.1764705882352942,"severity_sd":0.46995725200106375},"Signal":{"count":5759,"count_with_severity":null,"severity_mean":null,"severity_sd":null}},"validations":{"combined":{"total_validations":374622,"Overall":{"validated":134258,"agreed":118909,"disagreed":15349,"accuracy":0.8856753415066514,"has_a_validation":147957},"CurbRamp":{"validated":73351,"agreed":70130,"disagreed":3221,"accuracy":0.9560878515630326,"has_a_validation":77712},"NoCurbRamp":{"validated":5554,"agreed":1344,"disagreed":4210,"accuracy":0.24198775657184013,"has_a_validation":5877},"Obstacle":{"validated":7105,"agreed":4952,"disagreed":2153,"accuracy":0.6969739619985925,"has_a_validation":8133},"SurfaceProblem":{"validated":20572,"agreed":17157,"disagreed":3415,"accuracy":0.8339976667314797,"has_a_validation":25029},"Other":{"validated":40,"agreed":9,"disagreed":31,"accuracy":0.225,"has_a_validation":48},"Occlusion":{"validated":202,"agreed":184,"disagreed":18,"accuracy":0.9108910891089109,"has_a_validation":205},"NoSidewalk":{"validated":1299,"agreed":1120,"disagreed":179,"accuracy":0.8622016936104696,"has_a_validation":1327},"Crosswalk":{"validated":23900,"agreed":22021,"disagreed":1879,"accuracy":0.9213807531380753,"has_a_validation":27323},"Signal":{"validated":2235,"agreed":1992,"disagreed":243,"accuracy":0.8912751677852349,"has_a_validation":2303}},"human":{"total_validations":226224,"Overall":{"validated":95945,"agreed":83245,"disagreed":12700,"accuracy":0.8676324977851895,"has_a_validation":100987},"CurbRamp":{"validated":49351,"agreed":46578,"disagreed":2773,"accuracy":0.9438106623979251,"has_a_validation":51116},"NoCurbRamp":{"validated":4768,"agreed":1389,"disagreed":3379,"accuracy":0.2913171140939597,"has_a_validation":5138},"Obstacle":{"validated":7057,"agreed":4982,"disagreed":2075,"accuracy":0.7059657078078504,"has_a_validation":7574},"SurfaceProblem":{"validated":17340,"agreed":14115,"disagreed":3225,"accuracy":0.8140138408304498,"has_a_validation":19282},"Other":{"validated":40,"agreed":9,"disagreed":31,"accuracy":0.225,"has_a_validation":48},"Occlusion":{"validated":202,"agreed":184,"disagreed":18,"accuracy":0.9108910891089109,"has_a_validation":205},"NoSidewalk":{"validated":1299,"agreed":1120,"disagreed":179,"accuracy":0.8622016936104696,"has_a_validation":1327},"Crosswalk":{"validated":13653,"agreed":12876,"disagreed":777,"accuracy":0.943089430894309,"has_a_validation":13994},"Signal":{"validated":2235,"agreed":1992,"disagreed":243,"accuracy":0.8912751677852349,"has_a_validation":2303}},"ai":{"total_validations":148398,"Overall":{"validated":109332,"agreed":96783,"disagreed":12549,"accuracy":0.8852211612336736,"has_a_validation":143502},"CurbRamp":{"validated":69913,"agreed":66273,"disagreed":3640,"accuracy":0.9479352910045342,"has_a_validation":77424},"NoCurbRamp":{"validated":4787,"agreed":851,"disagreed":3936,"accuracy":0.17777313557551702,"has_a_validation":5789},"Obstacle":{"validated":636,"agreed":0,"disagreed":636,"accuracy":0,"has_a_validation":8116},"SurfaceProblem":{"validated":12941,"agreed":11129,"disagreed":1812,"accuracy":0.8599799088169384,"has_a_validation":24952},"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":21055,"agreed":18530,"disagreed":2525,"accuracy":0.8800759914509617,"has_a_validation":27221},"Signal":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0}}},"ai_stats":{"Overall":{"human_majority_vote":{"ai_yes_human_concurs":57513,"ai_yes_human_differs":1816,"ai_no_human_differs":2941,"ai_no_human_concurs":5408},"admin_majority_vote":{"ai_yes_human_concurs":28675,"ai_yes_human_differs":342,"ai_no_human_differs":1884,"ai_no_human_concurs":2422}},"CurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":40966,"ai_yes_human_differs":1026,"ai_no_human_differs":1151,"ai_no_human_concurs":1077},"admin_majority_vote":{"ai_yes_human_concurs":19173,"ai_yes_human_differs":75,"ai_no_human_differs":536,"ai_no_human_concurs":401}},"NoCurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":594,"ai_yes_human_differs":156,"ai_no_human_differs":403,"ai_no_human_concurs":2662},"admin_majority_vote":{"ai_yes_human_concurs":322,"ai_yes_human_differs":126,"ai_no_human_differs":299,"ai_no_human_concurs":1380}},"Obstacle":{"human_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":74,"ai_no_human_concurs":484},"admin_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":40,"ai_no_human_concurs":202}},"SurfaceProblem":{"human_majority_vote":{"ai_yes_human_concurs":7209,"ai_yes_human_differs":514,"ai_no_human_differs":533,"ai_no_human_concurs":660},"admin_majority_vote":{"ai_yes_human_concurs":4778,"ai_yes_human_differs":138,"ai_no_human_differs":526,"ai_no_human_concurs":252}},"Crosswalk":{"human_majority_vote":{"ai_yes_human_concurs":8744,"ai_yes_human_differs":120,"ai_no_human_differs":780,"ai_no_human_concurs":525},"admin_majority_vote":{"ai_yes_human_concurs":4402,"ai_yes_human_differs":3,"ai_no_human_differs":483,"ai_no_human_concurs":187}}}}