How urgent is the eight hundred mile express? What do you think?

In some film and television dramas, you can often see the term "eight hundred miles urgent". How urgent is eight hundred miles urgent? Here is my opinion.

The eight hundred mile express is actually just a general term. It does not mean that you have to drive eight hundred miles in one day, because the terrain in different parts of the country is different, and the roads along the way are The facilities of the inns are different, the road conditions are different, and even the weather conditions are different when you are on the road. Therefore, even if you take the same 800-mile express, you will not be able to drive off the same road at the same speed.

Babaili express can be understood as the most urgent and fastest way of transmitting information. It relies on the information transmission system of ancient post stations to deliver information as quickly as possible. Generally speaking, Babaili Express adopts a method of non-stop day and night, changing horses and people, but the message is constantly transmitted, and the message is transmitted at the fastest speed.

People who carry urgent news will pass the news down station by station along the official road as quickly as possible. Generally, such urgent message delivery will not be delivered at every station. Those who stay will only stop at the inn when their horse power is exhausted and they need to change horses, and then continue to deliver the message. People who deliver messages usually bring their own water and dry food, and solve the problem of eating by themselves on the road. Things like eating will not affect the speed of message delivery.

But people are not always invulnerable, and people also need to rest. So what should we do in this situation? Most of the time, what is delivered is the message, not the person who needs to deliver the message. Therefore, when the messenger who delivers the message cannot support himself, he will hand the message to the postman at the post station. The replacement will pass on the sealed box containing the message.

This kind of non-stop day and night, changing horses and people but constantly delivering the message, is the fastest "eight hundred mile express" delivery in ancient times, which is also the fastest method of message delivery. So eight hundred miles expedited is actually just a general term. It does not mean that the message must be delivered at a speed of eight hundred miles per day, but more because of the urgency of the message, so it will have the highest priority. For example, when a message is delivered to a post station, he will switch to the best horse at the post station to deliver it. When the post station is faced with multiple messages at the same time, the post soldier will also give priority to delivering this message and postpone other messages. This is eight The true meaning of Baili Express is the highest priority for information delivery.