3 ms·
The countdown counters are about the same size as one of the lights whereas to be able to comfortably see the counter from a moving vehicle from at least 100 me
by skalpelis 18y ago
The countdown counters are about the same size as one of the lights whereas to be able to comfortably see the counter from a moving vehicle from at least 100 meters, the numbers on the counter should be humongous. After all, the main idea behind this is knowing beforehand (long enough beforehand) what the light will turn into and when so that you can accelerate just enough to make it through just before the green ends, or decelerate enough to make it to the intersection just as the green comes on so that there's no need for braking, stopping and starting again.
- gojomo 18y agoI found them quite large and readable from long distances. Here's an image I found online of a countdown traffic light in Shenzhen, China: http://bbeled.com/project/images/dongguan.JPG http://bbeled.com/project/images/dongguan.JPG And even Thailand: http://bbeled.com/project/images/taiguo.JPG http://bbeled.com/project/images/taiguo.JPG Come on, USA, let's get with the 21st century already! (Photos in context at http://bbeled.com/project.htm http://bbeled.com/project.htm , click the second 'Traffic signal light' tab.)