In　order　to　provide　a　theoretical　basis　for　the　ride　comfort　level　evaluation,　daily　management,　and　maintenance　of　asphalt　concrete　pavement,　the　performance　parameters　and　three-directional　acceleration　data　of　highway　pavements　were　measured　indoors　and　outdoors.　Using　these　data,　the　relationship　between　the　mean　square　of　weighted　acceleration　and　the　pavement　performance　was　studied.　A　linear　regression　equation　that　reflects　the　relationship　between　the　root　mean　square　of　weighed　acceleration,　speed,　and　roughness　was　obtained　by　fitting　214　groups　of　experimental　data.　In　addition,　the　outdoor　experimental　results　were　verified　using　a　driving　simulator.　The　results　show　that　the　root　mean　square　of　weighed　acceleration　is　strongly　correlated　with　roughness,　moderately　correlated　with　the　speed,　and　weakly　correlated　with　the　dynamic　friction　coefficient.　Given　a　certain　dynamic　friction　coefficient,　the　ride　comfort　level　of　an　asphalt　concrete　pavement　reduces　with　its　roughness　and　driving　speed　increasing.　When　the　roughness　is　1.35　and　3.05　mm/m,　the　maximum　speed　with　an　appropriate　ride　comfort　level　is　124.1　and　88.7　km/h,　respectively.