The utility model provides a variable pavement marking's smart equipment, including the active railway spike of the formula of buryying that equal height was laid with the road surface that a plurality of wire has been connected, the variable pavement marking's of the active railway spike of the formula of buryying constitution profile, the active railway spike of the formula of buryying is controlled by the controller, and shining and going out of the active railway spike of formula is buryyed according to the size control of vehicle flowrate to the controller to constitute the pavement marking of different direction of arrows. The utility model discloses can be equitable according to specific changeable pavement marking of setting that requires, the applicable highway section that changes in the not equidirectional traffic demand coefficient of uniformity law of road that morning and evening tides traffic characteristic is obvious and sporadic incident caused, according to the wagon flow distribution situation on the different time lanes, variable pavement marking carries out corresponding adjustment to the lane, can alleviate the block up greatest benefit of phenomenon, the present urban road resource of performance of urban traffic effectively.