text: In conclusion, it seems that residents in car-free cities are more stress-free, happy, and taking care of air pollution. These advantages of limiting car usage should appeal to a lot of different countries now. I'm not saying we should ban cars all together, (because I really enjoy driving), but maybe just cut down on it and enjoy the outdoors for once.    Could the new technology called "Facial Action Coding System" enable computers to indentify human emotions? Yes, the new techonology could enable the computers ability to detect a haumans emotions to help in the school enviroment.