{"id":"W2088208555","doi":"10.3141/2060-05","title":"Length Requirements for New Single-Arc Unsymmetrical Vertical Curve","year":2008,"lang":"en","type":"article","venue":"Transportation Research Record Journal of the Transportation Research Board","topic":"Transportation Safety and Impact Analysis","field":"Engineering","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Toronto Metropolitan University","funders":"Core Research for Evolutional Science and Technology; Natural Sciences and Engineering Research Council of Canada","keywords":"Arc length; Arc (geometry); Curvature; Osculating circle; Mathematics; Geometry; Function (biology); Curve fitting; Point (geometry); Mathematical analysis; Statistics","routes":{"ca_aff":true,"ca_fund":true,"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":[0.001264625,0.0005004036,0.0003536869,0.00106734,0.0005382498,0.001269346,0.001357581,0.0007278662,0.005765375],"category_scores_gemma":[0.009287456,0.0003175766,0.0003600024,0.0006076171,0.0005825846,0.001476403,0.0009136317,0.0007713995,0.00191861],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007618106,"about_ca_system_score_gemma":0.001678398,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001899367,"about_ca_topic_score_gemma":0.002839341,"domain_scores_codex":[0.9973502,0.0003120021,0.0002944257,0.0002195393,0.001679305,0.0001446252],"domain_scores_gemma":[0.9935342,0.001327646,0.0008996241,0.0006127156,0.003391343,0.0002343533],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0004872609,0.0002064263,0.01071065,0.0007425337,0.0000270743,0.0005446522,0.001228631,0.187153,0.1242691,0.1334538,0.009680938,0.5314959],"study_design_scores_gemma":[0.0001909631,0.001745552,0.01118992,0.0002028388,0.00006652405,0.00252657,0.0008124905,0.6027225,0.1400224,0.05671638,0.1835714,0.0002324775],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.06517563,0.0001810438,0.8931537,0.000256087,0.00006201935,0.0003318378,0.0002310852,0.001358291,0.03925051],"genre_scores_gemma":[0.6798931,0.0002791315,0.3054539,0.0001083438,0.00004941866,0.0003857104,0.0004390441,0.0005322084,0.01285908],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.005765375,"threshold_uncertainty_score":0.01928711,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1869788281919318,"score_gpt":0.3825364548686997,"score_spread":0.1955576266767679,"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."}}