Number of traffic accidents is likely to increase, due to the increase of the number of vehicles in accordance with the increase of licensed people, the increase of aged drivers and the prohibition of studded tires. In these situations, road pavements are also required to have the function of preserving vehicle safety

  Here, road pavements that contribute to traffic safety are discussed.

Drainage pavements

  This pavement is composed of asphalt mixture which use special kind of asphalt and more coarse graded aggregates. The appearance is like rough sponge.

  Effects---No water puddle is formed due to the permeability of surface course. Therefore the water splash at the passing of vehicles is prevented, hydro-planing phenomena at high speed is mitigated. And more, these pavements have noise absorption ability and noise reduction is expected. The coarseness of surface enables high resistance to slippage and enhance the braking function of vehicles. We WatanabeSato supply this kind of asphalt mixture in the name of Hi-Puddless. (abbreviation of Puddle less)

Freezing Restraint Pavements

  As to freezing restraint pavements, please see the page of where freezing is afraid.

Glass Containing Pavements

  This pavement utilizes waste glasses that are nowadays one of social problem, after crushing to fine aggregates.

  Effects---The surface of added waste glasses sparkle reflecting the light of the sun or vehicle lights and the road surface visibility for drivers is expected to be enhanced. In addition, this pavement play a roll of warning to drivers when it is applied to crooked sections or intersections where occurrences of traffic accidents are expected due to poor visibility.