Using　a　driving　simulator,　the　effects　of　Chinese　chevrons　on　drivers＇　actual　and　perceived　safe　speeds　at　horizontal　curves　on　two-lane　rural　highways　are　tested.　Twelve　horizontal　curves　with　different　roadway　geometries　are　designed　and　used　as　the　simulated　scenarios.　The　results　show　that,　regardless　of　the　curve　radius,　chevrons　at　horizontal　curves　provide　advance　warning　and　speed　control　for　vehicles　on　the　nearside　of　chevrons.　Besides,　chevrons　can　be　used　as　an　addition　to　speed　limit　signs　in　preventing　excessive　speed　at　horizontal　curves　and,　therefore,　can　contribute　to　a　reduction　in　run-off-road　crashes.　Moreover,　Chinese　chevrons　can　also　serve　to　provide　an　improved　sense　of　safety　while　driving　around　sharp　curves.　These　study　results　lay　a　foundation　for　setting　Chinese　chevrons　more　reasonably.　©,　2015,　Southeast　University.　All　right　reserved.