| 摘要 |
A road surface condition estimating device includes an undulation estimating portion for estimating undulations on the trajectory of a traveling vehicle from behavioral information about plural vehicles collected during travel of the vehicles, and a rut estimating portion for estimating undulations of ruts relative to the trajectories of the vehicles from the trajectories of traveling vehicles and from the behavioral information about the vehicles. The behavioral information includes information about positions, postures, and speeds of travel of the vehicles. Undulations on the trajectory of each traveling vehicle found by the undulation estimating portion and undulations of ruts relative to the trajectory of the traveling vehicle are superimposed for each vehicle to find road surface conditions, which are delivered to the vehicles. |
