The Road is a Campaign Achievement for Halo 3 and Halo: The Master Chief Collection.

It is earned when one finishes the campaign mission Tsavo Highway on the Normal, Heroic, or Legendary difficulty.

The Halo 3 achievement gives 20 Gamerpoints and is represented by a blue plate with a Roman numeral III on it.

Note: You must finish the level completely through from Mission Start, otherwise it won't count.