The road "white to black" is to transform the original gray cement concrete pavement into black asphalt concrete pavement, so as to achieve the effects of environmental protection, dust prevention, noise reduction and driving comfort. Compared with the original concrete pavement, the adhesion between the white to black road pavement and the tire is enhanced, the braking performance of the vehicle in dealing with emergencies is greatly improved, and the vehicle is safer and more stable; The noise generated during vehicle driving will be greatly reduced, which plays an important role in reducing urban noise; The black asphalt pavement has good dust absorption performance and can effectively absorb the dust during vehicle driving, so as to improve the air quality on both sides of the road and the quality of beautifying the environment of the park, which will greatly enhance the overall image of Jiaolong port.