I live in a sizable metropolitan city.
It is a huge neighborhood filled with millions of people.
As you can really imagine, the neighborhood is very busy because of the sizable population. This means that traffic is constantly heavy. Many people opt for public moveation to avoid street traffic, and however, this causes public moveation to be packed and crammed. I usually take the train to and from work, so I run into crammed trains all the time. Other than the evident physical discomfort from being in a narrow space with so several people, the temperature conditions within the trains are another source of discomfort. The trains get so boiling because of body heat. The seasoned trains don’t have any source of cool air, so those trains become unbearably hot. Nothing is worse than being pressed up against someone while covered in sweat from the high temperatures. The newer trains have very strong cooling systems, so those trains can handle the body heat much better. I don’t usually experience too much discomfort temperature wise when I am riding in current trains. The engineers that designed the current trains clearly knew what they were doing when designing these trains. If I ever ride on an empty train, I constantly notice that they are very cool because of these cooling units. It almost feels like I am in the luxury of my home with the a/c component blasted to full speed. I am so thankful that the neighborhood came out with these current trains and decided to invest in cooling systems within the trains. It makes the commutes so much easier.