

After driving a car, I got to hate walking even a stone's throw away. Nevertheless, I usually took the public transportation such as the subway in Korea when I had meeting downtown because the parking permit was expensive and the parking lots were not enough. Most of all, the traffic congestion prevented me from driving. Lots of people prefer to walk or use the public transportation because of the same reason as I have.
In San Diego, the other hand, I have rare chance to walk. It might be because the public transportation is not developed enough and its safety is not ensured, either. Therefore, I do not even think of using the public transportation. Even so, it does not mean I never walk. As my son's elementary school was just opposite across road, I occasionally walk to school with my son. Just there, I detected a different thing from ours;a pedestrian traffic light.
First of all, Korea's traffic signals are regularly changed . They are not affected by the number of waiting cars on the lane. They just keep the time distributed to each lane. Now and then, in case of the extreme traffic congestion, a policeman directing traffic timely either hold the signal or release to ease the traffice jam. However, the traffic signals change in general at regular intervals except for being operated by an officer if and only if a road is too blocked.
Consequently, pedestrian signals also get changed regularly irrespective of the number of a foot passenger by the roadside. So, we do not push any buttons -we do not have buttons-to change signal, but just wait the sign to change its color. In one traffic light pole, two separated lamps are placed;red and green, respectively. In Red(standing person on it), pedestrian should stop and wait until it changes to Green(walking person). The Green light blinks four-five seconds after pedestrians start to go over the road. It implies that there is no enough time to across, so no more try.
First of all, Korea's traffic signals are regularly changed . They are not affected by the number of waiting cars on the lane. They just keep the time distributed to each lane. Now and then, in case of the extreme traffic congestion, a policeman directing traffic timely either hold the signal or release to ease the traffice jam. However, the traffic signals change in general at regular intervals except for being operated by an officer if and only if a road is too blocked.
Consequently, pedestrian signals also get changed regularly irrespective of the number of a foot passenger by the roadside. So, we do not push any buttons -we do not have buttons-to change signal, but just wait the sign to change its color. In one traffic light pole, two separated lamps are placed;red and green, respectively. In Red(standing person on it), pedestrian should stop and wait until it changes to Green(walking person). The Green light blinks four-five seconds after pedestrians start to go over the road. It implies that there is no enough time to across, so no more try.
Then, How about America? I mean San Diego.Since the traffic system is controlled by on-line sensor fixed on the top of the traffic lights for drivers, a stand by interval is very different depending on different traffic conditions.
I saw a pedestrian button during backpack trip to Europe in 1999 and heard many times that people in the United States should push something to across road, but it was sure that this system was unknown to me. Even a long time has passed since arrived, I just stood by the road, waiting the light to change because I always forgot to push the button. Pushing button was unfamiliar. One day, I was standing for about 10 minutes, waiting the sign to change. 15minutes...I felt nervous, but I thought the America's sign was a little bit slow to change.
Besides, the pedestrian sign here is a little bit strange to me, who have seen for a long time the colors of traffic lights are Red or Green. Here, the colors and shapes of traffic sign vary. All states have different signs. In La Jolla, my neighborhood, just a walking person, no green color, is go-sign to pedestrians. Then, a walking person is switched into a blinking palm shape of the hand, which is corresponding with the blinking green light in Korea;it warns people that it is too late to cross. A stop sign is the red-still palm light.
The interval between go and warning(blinking) is, however, very short here. I think Go-sign keeps at least 4 seconds before blinking, but go-sign is turned to a blinking palm shape in one second. At first, I hesitated to cross the road in a blinking sign. A blinking has been regarded as a little bit late to cross in Korea.
Anyway, in sum up, we have different traffic signs, and it is because we have different traffic conditions, road capacities ,and road plans.











