There have been various contrived methods in use for preventing the pavement surface from freezing in cold snowy areas. Road heating systems are certainly effective. But it is very expensive for construction and maintenance. Other methods adopted, for example, are an asphalt mix incorporated with a salt, (i.e., salt-like material such as calcium chloride) and with an elastomer such as rubber. The salt-containing pavement becomes ineffective after one to two years because of leaching out of the salt. The elastomer in the pavement tends to come out in summer on account of its low combined strength in general. And the pavement tends to be rutted in summer. It is important that the pavement maintains the freeze-preventing effect over a long period of time and can restore when its effect has been lost. The functional recoverable freeze-preventing surface course that has such functions has been newly developed and has been in practical use. The paper describes the result of the 3-years field test and the improvement for its durability and effectiveness.