Japan National Route 42

Japan National Route 42 is a national highway extending roughly 519 kilometers across Shizuoka, Aichi, Mie, and Wakayama Prefectures, linking coastal cities and inland areas. The route includes an Ise Bay Ferry crossing that merges road and maritime transport into one continuous journey.

The road started in 1945 as part of Route 41 and was reclassified as Route 170 in 1953 before receiving its current designation. These changes reflect how Japan reorganized its road network after World War II.

The road connects with local communities through Michinoeki stations that display regional products and share information about nearby destinations. These roadside stops let travelers experience what each area is known for and meet people passing through.

Travelers can connect to the Hanwa Expressway and Kisei Expressway at several junction points along the route to continue toward other regions. The Michinoeki stations serve as convenient places to rest and learn about what comes next along the way.

A distinctive feature is how the route incorporates the Ise Bay Ferry, seamlessly connecting road and maritime transport into one journey. This water crossing sets it apart from typical highways and gives travelers an experience that blends driving with sailing.

Location: Shizuoka Prefecture

Location: Aichi Prefecture

Location: Mie Prefecture

Location: Wakayama Prefecture

Inception: 1945

GPS coordinates: 34.68062,137.66335

Latest update: December 6, 2025 22:00