Chuseok return traffic intensified nationwide, with morning estimates putting Busan-to-Seoul travel at about seven hours and Ulsan-to-Seoul at six hours 40 minutes. Korea Expressway Corporation expected congestion to peak around 4 to 5 p.m. and ease in the early hours of the following morning. Nationwide highway volume was projected at about 5.9 million vehicles, including roughly 520,000 returning from the provinces to the Seoul metropolitan area.