자동차 없는 반포대로 10차선…이틀간 음악·예술 축제 - 뉴시스

In its September 14, 2026 report, Newsis said Seoul’s Seocho District will hold the 2026 Seoripul Music Festival on September 19–20 along roughly 900 meters of Banpo-daero from Seocho Station to the Seocho 3-dong intersection. The article states the road will be fully closed for event preparation and operations from 00:00 on September 19 until 04:00 on September 21 (about 52 hours).