Hokuriku Shinkansen Osaka extension is facing mounting challenges as projected construction costs rise and timelines slip beyond initial targets. While the line already connects Tokyo to Tsuruga, extending it to Kyoto and Osaka remains under review due to inflation, environmental assessments, and route alignment concerns. Despite delays, the project is viewed as vital for long-term regional connectivity, tourism growth, and linking Kansai with Japan’s Hokuriku region.