I live in a large metropolitan city.
It is a immense town filled with millions of people.
As you can truly imagine, the town is actually busy because of the large population. This means that traffic is constantly heavy. Many people opt for public transportation to avoid street traffic! However, this causes public transportation to be packed plus crammed. I usually take the train to plus from work, so I run into crammed trains all the time. Other than the evident physical discomfort from being in a tight space with so numerous people, the temperature conditions within the trains are another source of discomfort. The trains get so hot because of body heat. The old 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 uneven temperatures. The newer trains have actually 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 modern trains. The engineers that designed the modern 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 actually cool because of these cooling units. It almost feels like I am in the luxury of my loft with the air conditioner component blasted to full speed. I am so thankful that the town came out with these modern trains plus decided to invest in cooling systems within the trains. It makes the commutes so much easier.