| 摘要 |
A traffic sign includes a post; a base plate mounted on the post; at least one panel formed on the base plate, at least one panel formed on the base plate, each of the at least one panel being red, yellow, green, or blue; and at least one letter each formed on the panel, each of the at least one letter being “E” indicating east, “W” indicating west, “S” indicating south, or “N” indicating north. The traffic sign has colors of the panels chosen by considering common sense into consideration. A motorist may see the color of each panel of a traffic sign well ahead of the automobile driving on a highway. This is because the eyes are more sensitive to colors. A motorist can easily decide when to leave the highway when seeing the color of the panel with the further indication of the direction letter therein. |
