Traffic warning system

The utility model discloses a traffic warning system which is applied in a tunnel and comprises a projection screen which is configured on a road surface of a road section needing road closure of the tunnel; the projection device is placed on one side of the projection screen and configured to project warning signs to the projection screen, and the warning signs are projected to the projection screen in an image mode through the projection device, for example, warning cones and warning signs can be projected, so that the projection device is more eye-catching, passing vehicles can judge the road condition in front easily in advance, safe driving is facilitated, and the driving safety is improved. And a warning effect is achieved. 本实用新型公开了一种交通警示系统，应用于隧道内，包括：投放屏，配置在隧道需要封路的路段的路面上；投影装置，放置在投放屏的一侧，配置为向所述投放屏投放警示标，通过投影装置以影像的方式将警示标语投放至投放屏上，例如，可以投放警示锥、也可以投放警示语，这样更加的醒目，过往车辆容易提前判断前方的路况，利于安全驾驶，起到警示作用。