为了方便盲人和弱视者过马路,减少交通事故,西班牙一些城市将安装一种会“说话”的红绿灯。这种红绿灯装置由一台小型电子计算机控制,并联结一个广播器。当红灯亮的时候,广播器会连续发出“红灯,请稍等”的声音;而亮起绿灯时,广播器又会自动播出:“绿灯,请您走好”。 In order to facilitate the blind and the visually impaired to cross the street and reduce traffic accidents, some cities in Spain will install a kind of “talking” traffic light. The traffic light is controlled by a small computer and is connected to a broadcaster. When the red light is on, the broadcaster will emit a continuous “red light, please wait” sound. When the green light is on, the broadcaster will automatically broadcast: “Green light, please take a good walk.”