{"launch_date":"2026-03-27","avg_timestamp_last_100_labels":"2026-04-30T20:43:10.339Z","km_explored":16.860776256415463,"km_explored_no_overlap":15.084483641763807,"km_explored_multiple_users":1.2769317192493328,"km_explored_single_user":13.807551922514474,"km_explorable":44.3165403970577,"km_by_status":{"open":44.3165403970577,"no_imagery":1.6024811890660355,"closed":0,"disabled":0},"user_counts":{"all_users":54,"labelers":23,"validators":46,"registered":39,"anonymous":10,"turker":0,"researcher":4},"labels":{"label_count":641,"label_count_with_severity":152,"avg_label_timestamp":"2026-04-27T17:49:33.768117-07:00","avg_age_of_image_when_labeled":"978 days","stddev_label_timestamp":"8 days","stddev_age_of_image_when_labeled":"1130 days","CurbRamp":{"count":51,"count_with_severity":34,"severity_mean":1.647058823529412,"severity_sd":0.5439670746038949},"NoCurbRamp":{"count":32,"count_with_severity":24,"severity_mean":2.4166666666666665,"severity_sd":0.7755316082290384},"Obstacle":{"count":14,"count_with_severity":6,"severity_mean":2,"severity_sd":0.6324555320336759},"SurfaceProblem":{"count":120,"count_with_severity":82,"severity_mean":1.9390243902439024,"severity_sd":0.6730722078117889},"Other":{"count":1,"count_with_severity":1,"severity_mean":1,"severity_sd":null},"Occlusion":{"count":1,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"NoSidewalk":{"count":400,"count_with_severity":null,"severity_mean":null,"severity_sd":null},"Crosswalk":{"count":17,"count_with_severity":5,"severity_mean":2.2,"severity_sd":0.4472135954999579},"Signal":{"count":5,"count_with_severity":null,"severity_mean":null,"severity_sd":null}},"validations":{"combined":{"total_validations":2382,"Overall":{"validated":340,"agreed":285,"disagreed":55,"accuracy":0.8382352941176471,"has_a_validation":361},"CurbRamp":{"validated":44,"agreed":40,"disagreed":4,"accuracy":0.9090909090909091,"has_a_validation":51},"NoCurbRamp":{"validated":29,"agreed":23,"disagreed":6,"accuracy":0.7931034482758621,"has_a_validation":32},"Obstacle":{"validated":11,"agreed":8,"disagreed":3,"accuracy":0.7272727272727273,"has_a_validation":14},"SurfaceProblem":{"validated":117,"agreed":97,"disagreed":20,"accuracy":0.8290598290598291,"has_a_validation":120},"Other":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"Occlusion":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"NoSidewalk":{"validated":122,"agreed":106,"disagreed":16,"accuracy":0.8688524590163934,"has_a_validation":127},"Crosswalk":{"validated":17,"agreed":11,"disagreed":6,"accuracy":0.6470588235294118,"has_a_validation":17},"Signal":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0}},"human":{"total_validations":2130,"Overall":{"validated":338,"agreed":285,"disagreed":53,"accuracy":0.8431952662721893,"has_a_validation":358},"CurbRamp":{"validated":45,"agreed":41,"disagreed":4,"accuracy":0.9111111111111111,"has_a_validation":51},"NoCurbRamp":{"validated":31,"agreed":24,"disagreed":7,"accuracy":0.7741935483870968,"has_a_validation":32},"Obstacle":{"validated":13,"agreed":10,"disagreed":3,"accuracy":0.7692307692307693,"has_a_validation":14},"SurfaceProblem":{"validated":114,"agreed":95,"disagreed":19,"accuracy":0.8333333333333334,"has_a_validation":119},"Other":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"Occlusion":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0},"NoSidewalk":{"validated":122,"agreed":106,"disagreed":16,"accuracy":0.8688524590163934,"has_a_validation":127},"Crosswalk":{"validated":13,"agreed":9,"disagreed":4,"accuracy":0.6923076923076923,"has_a_validation":15},"Signal":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0}},"ai":{"total_validations":252,"Overall":{"validated":157,"agreed":126,"disagreed":31,"accuracy":0.802547770700637,"has_a_validation":234},"CurbRamp":{"validated":40,"agreed":33,"disagreed":7,"accuracy":0.825,"has_a_validation":51},"NoCurbRamp":{"validated":22,"agreed":8,"disagreed":14,"accuracy":0.36363636363636365,"has_a_validation":32},"Obstacle":{"validated":2,"agreed":0,"disagreed":2,"accuracy":0,"has_a_validation":14},"SurfaceProblem":{"validated":81,"agreed":78,"disagreed":3,"accuracy":0.9629629629629629,"has_a_validation":120},"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":12,"agreed":7,"disagreed":5,"accuracy":0.5833333333333334,"has_a_validation":17},"Signal":{"validated":0,"agreed":0,"disagreed":0,"has_a_validation":0}}},"ai_stats":{"Crosswalk":{"human_majority_vote":{"ai_yes_human_concurs":4,"ai_yes_human_differs":1,"ai_no_human_differs":1,"ai_no_human_concurs":2},"admin_majority_vote":{"ai_yes_human_concurs":2,"ai_yes_human_differs":1,"ai_no_human_differs":0,"ai_no_human_concurs":3}},"Overall":{"human_majority_vote":{"ai_yes_human_concurs":112,"ai_yes_human_differs":7,"ai_no_human_differs":20,"ai_no_human_concurs":8},"admin_majority_vote":{"ai_yes_human_concurs":61,"ai_yes_human_differs":43,"ai_no_human_differs":11,"ai_no_human_concurs":13}},"SurfaceProblem":{"human_majority_vote":{"ai_yes_human_concurs":72,"ai_yes_human_differs":4,"ai_no_human_differs":0,"ai_no_human_concurs":2},"admin_majority_vote":{"ai_yes_human_concurs":36,"ai_yes_human_differs":26,"ai_no_human_differs":0,"ai_no_human_concurs":2}},"Obstacle":{"human_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":2,"ai_no_human_concurs":0},"admin_majority_vote":{"ai_yes_human_concurs":0,"ai_yes_human_differs":0,"ai_no_human_differs":0,"ai_no_human_concurs":1}},"NoCurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":5,"ai_yes_human_differs":2,"ai_no_human_differs":12,"ai_no_human_concurs":2},"admin_majority_vote":{"ai_yes_human_concurs":3,"ai_yes_human_differs":4,"ai_no_human_differs":8,"ai_no_human_concurs":3}},"CurbRamp":{"human_majority_vote":{"ai_yes_human_concurs":31,"ai_yes_human_differs":0,"ai_no_human_differs":5,"ai_no_human_concurs":2},"admin_majority_vote":{"ai_yes_human_concurs":20,"ai_yes_human_differs":12,"ai_no_human_differs":3,"ai_no_human_concurs":4}}}}