the traffic signal constantly yellow means slow down at this intersection. If you can survive driving in Taiwan particularly the south of Taiwan, you can drive anywhere just fine on earth.
The flashing yellow light actually is turned on for less traffic - you would not need to stop at every signal. Whenever you see the flashing yellow light, you use caution and pass. If it is flashing red, it’s equivalent to the STOP sign in the US that you will need to stop, watch for the traffic, then go.