{"@type":"StructuredNewsArticle","access":{"license":"neupai_standard","structured_data":"free","full_text_access":null,"full_text_available":false,"attribution_required":true},"content":{"claims":[{"id":"c1","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April this year","statement":"Metropolitan area public transportation ridership increased by 4% compared to the previous year through mid-April this year","comparison":"previous_year_same_period","expiry_hint":null,"source_type":"government_official","as_of_explicit":true},{"id":"c2","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"this year","statement":"Daily average passengers also increased from 160,000 to 170,000","comparison":null,"expiry_hint":null,"source_type":"government_official","as_of_explicit":false},{"id":"c3","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"This error, created by the combination of location data collection cycles, server processing time, and app update cycles, averages 1-3 minutes","comparison":null,"expiry_hint":null,"source_type":"research_paper","as_of_explicit":false},{"id":"c4","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"When statistical correction techniques were applied to one local government's bus information system, the error rate decreased by 23%","comparison":null,"expiry_hint":null,"source_type":"research_paper","as_of_explicit":false},{"id":"c5","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"While general GPS has a location error of 15m, RTK GPS reduces the error to within 1cm","comparison":null,"expiry_hint":null,"source_type":"industry_estimate","as_of_explicit":false},{"id":"c6","type":"fact","as_of":"2026","figures":null,"insight":null,"as_of_raw":"this year","statement":"LG Uplus built an RTK-based bus information system for 67 city buses in Gongju City, Chungnam Province this year","comparison":null,"expiry_hint":null,"source_type":"company_disclosure","as_of_explicit":true},{"id":"c7","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"Executives and employees of companies that introduced Mobl track vehicle locations with errors of less than 1cm using RTK GPS","comparison":null,"expiry_hint":null,"source_type":"company_disclosure","as_of_explicit":false},{"id":"c8","type":"fact","as_of":"2014","figures":null,"insight":null,"as_of_raw":"2014","statement":"The TRIPS system started in Seoul in 2014 and has now been introduced in Cheongju, Wonju, Ulsan, Daejeon, and other cities","comparison":null,"expiry_hint":null,"source_type":"government_official","as_of_explicit":true},{"id":"c9","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"5G networks serve as the neural network of smart city transportation systems with performance capable of simultaneously connecting 1 million devices per 1㎢","comparison":null,"expiry_hint":null,"source_type":"industry_estimate","as_of_explicit":false},{"id":"c10","type":"fact","as_of":"2026-04","figures":null,"insight":null,"as_of_raw":"April 2026","statement":"By reflecting intersection signal cycles and traffic volume data in real-time, it showed results of reducing errors to within 1.5 minutes","comparison":null,"expiry_hint":null,"source_type":"research_paper","as_of_explicit":false}],"topics":["transportation","gps","rtk","smart city","artificial intelligence","public transportation"],"summary":"As public transportation ridership surges due to high oil prices, the accuracy issues of bus arrival time apps have become a daily stress. Precision transportation systems utilizing RTK GPS and AI technology are gaining attention as solutions to this problem.","entities":[{"name":"LG Uplus","type":"company","metadata":{"parent":null,"ticker":null},"canonical_id":"corp:kr:lg-uplus","role_in_article":"primary_subject"},{"name":"CL Mobility","type":"company","metadata":{"parent":null,"ticker":null},"canonical_id":"corp:kr:cl-mobility","role_in_article":"primary_subject"},{"name":"Korea Transport Institute","type":"organization","metadata":{"parent":null,"ticker":null},"canonical_id":"org:kr:korea-transport-institute","role_in_article":"source"},{"name":"Seoul Transportation Corporation","type":"company","metadata":{"parent":null,"ticker":null},"canonical_id":"corp:kr:seoul-metro","role_in_article":"mentioned"},{"name":"KakaoMap","type":"product","metadata":{"parent":null,"ticker":null},"canonical_id":"product:kr:kakao-map","role_in_article":"mentioned"},{"name":"Naver Map","type":"product","metadata":{"parent":null,"ticker":null},"canonical_id":"product:kr:naver-map","role_in_article":"mentioned"},{"name":"Gongju City","type":"location","metadata":{"parent":null,"ticker":null},"canonical_id":"location:kr:gongju","role_in_article":"mentioned"}],"headline":"\"Arriving in 5 minutes\" - Will the bus really come in 5 minutes?","geography":["KR"],"ai_emotional_context":{"arousal":0,"valence":0,"primary_emotions":[],"emotional_triggers":[],"secondary_emotions":[]}},"@context":"https://neupai.io/schema/v0.2","identity":{"ai_url":null,"author":"김광우 기자","language":"en","publisher":{"name":"테크42","type":"online","domain":"www.tech42.co.kr"},"article_id":"tech42_20260427_bus-arrival-time-accuracy","updated_at":null,"originality":"self_produced","article_type":"analysis","published_at":"2026-04-27T23:13:21.000Z","canonical_url":"https://www.tech42.co.kr/5%eb%b6%84-%ed%9b%84-%eb%8f%84%ec%b0%a9%ec%9d%b4%eb%9d%bc%eb%8d%98-%eb%b2%84%ec%8a%a4-%ec%a7%84%ec%a7%9c-5%eb%b6%84-%ed%9b%84-%ec%98%ac%ea%b9%8c/?utm_source=rss&utm_medium=rss&utm_campaign=5%25eb%25b6%2585-%25ed%259b%2584-%25eb%258f%2584%25ec%25b0%25a9%25ec%259d%25b4%25eb%259d%25bc%25eb%258d%2598-%25eb%25b2%2584%25ec%258a%25a4-%25ec%25a7%2584%25ec%25a7%259c-5%25eb%25b6%2584-%25ed%259b%2584-%25ec%2598%25ac%25ea%25b9%258c"},"temporal":{"freshness":"recent","next_update_expected":null},"provenance":{"source_chain":["primary_reporting"],"related_articles":[],"original_source_url":null}}