According to the author from text 3, why are bullet trains so comfortable? ...

Text 3

If you visit Japan, you might choose to travel around the country by shinkansen train. These high-speed trains connect the major cities of Japan. They are nicknamed “bullet trains” because they go very fast and have pointy noses like a bullet.

Bullet trains are a good way to travel for several reasons other than their speed. They are very punctual, often leaving on time to the second. They are also comfortable. All the seats face forward, and there is plenty of leg room. Most importantly, bullet trains are very safe. In their 35-year history, there have been only a few accidents and no deaths.

The only downside to bullet trains is that they are expensive. A ticket to travel to another city can cost almost as much as an airline ticket would. However, if you fly, you will land at an airport at the edge of a city. Train stations are usually right in the middle of a city. This means that it is often more convenient to take a bullet train instead of flying, because you will arrive exactly where you want to be.