ロードトレイン

noun

trackless train; land train

A tourist or amusement vehicle consisting of a motorized unit pulling several passenger trailers, often seen in parks or resorts. Not a road-going truck combination.

• 遊ゆう園えん地ちでロードトレインに乗のった。

  I rode the trackless train at the amusement park.

noun

road train; long combination vehicle

A heavy truck pulling multiple trailers, used for long-distance freight, especially in Australia. This sense is less common in everyday Japanese.