Download Road Texture Pack Game-Ready Free Unity. 

A selection of 7 high quality, 1024 x 1024 fully tile-able game-ready road terrain textures.

Unity 5 Ready! Assets come packaged with Game-Ready materials and Source Assets including Normal Maps, AO Maps. Albedo and Height Maps.
Unity 5 Game Ready Materials Included!

Assets included:

A Full suite of Game-Ready Road Tarmac Materials, including source Albedo, Normal, AO, and Height Maps. Source Material comes in both PNG and TGA format!