| 摘要 |
A traffic light displaying remaining time on itself is developed with this invention characterized by a numerical display of the remaining time on the light, in which a traffic light and a backwards counter is combined within the same unit, and if necessary, in which data is not received with or without a cable from anywhere including the junction control device to which it is connected, which can be placed in the spot of the current signal transmitter light, in which the sizes, colours, digit forms and number of digits may be altered, which consists of various number of light sources where the size of the numbers can be fitted in the standard signal transmitters and can be easily read, and which can be controlled by a micro computerized electronic circuit.
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