Yunzhong County, as a border county of the Han Dynasty, is really not very populous. After all, after the initial Dugen and Kebi were able to plunder a few times, they went south to plunder from time to time, and Budugen even regarded Yunzhong as a source of troops.

Coming and going, there are fewer people in the clouds. At the beginning, Liu Tao came to serve as the Taishou, not so much as a promotion, but to take over a mess, and by the way, he helped guard the frontier.

In any case, for Liu Tao, the cloud is where the dream really begins.

The army to fight against the Yellow Turban, even if he became the general of Yulin Zhonglang in the future, the future is still vague for him, and only when he really has a territory can he feel that everything is solid.

The station outside Jinyang City, in this era, should not be a train, but a horse station. Pulled by eight horses, it is possible to pull about four carriages.

Originally, a horse was set up running on a railway, relying on the spacing of the sleepers to keep the horse running at high speed. In this way, about ten miles or so, it is necessary to change a horse and continue to complete the towing work.

It was only later that it was discovered that a horse could pull at most one carriage, so it was clear that the benefits could not be maximized.

So the adjustment was made, and the design of eight horses and one horse was parallel. If you don't take the rails, the horses are naturally not at full speed, but it is convenient for the carriages to walk on the rails on the ground, so it is not a big problem to pull four carriages and move forward at a constant speed.

However, what Liu Tao wants to experience, of course, is the express car. A horse runs on the tracks, pulling a carriage.

With the naked eye, the horses are moving slowly, and the four hooves are landing right on the sleeper gap, so there is a sense of getting faster and faster.

At first, it was 20 kilometers per hour, but in the blink of an eye, it was already 60 kilometers per hour, and the carriage moved forward rapidly under its drive, which really felt like a train.

After ten miles like this, enter the soothing zone, where there are no railroad tracks, but the horses will not be able to stop for a while due to inertia.

The staff in the rest area should change the rails to the rest area in advance, let the horses turn over, and then slowly stop. Change horses here, continue to circle along the circular track, and return to the tracks to continue running.

"At this speed, even if there is no spell, you can almost reach the clouds in a day!" Jian Yong, who was with the car, sighed.

The average speed is about 50 kilometers per hour, and there is a rest stop every 20 miles. That is, to be stingy with animal power, otherwise the horses would almost be wasted if they ran fifty miles like this.

Including the time it takes to change horses, the average speed is also 40 km/h. More than 400 miles from Taiyuan to Yunzhong, which is more than 200 kilometers, and it takes five to seven hours to almost finish.

Even if you change to an ordinary horse-drawn carriage, the average speed of 30 kilometers per hour is not a problem, and you can run it in one day.

In other words, if there is a problem in the cloud, then through the expedited carriage, the news can be brought back to Jinyang in about half a day. Then on the Jinyang side, it took half a day to prepare the soldiers, and then successively transported them through ordinary carriages, and they could arrive at the front line at noon the next day. It is rare that the soldiers did not march, so they can enter the battle as soon as they get out of the car.

After realizing this, Yang Jie was shocked and sighed at the railway.

It is no wonder that His Majesty will do whatever it takes to build this railway, whether it is military or commercial, it is very cost-effective.

For example, in the past, a caravan went north with a hundred truckloads of goods, and the people on the road ate and chewed, including the cost of bodyguards, which was not a small amount.

Now it only needs to be loaded and then transported to the place, which requires almost no manpower, and even the manpower for transportation can be temporarily hired at the station, and even solve the work problems of local people.

It also takes less time, which means that the cost of eating horses on the road is further reduced. In this way, it is equivalent to an increase in income of about 20%, and it is also very time-saving.

If the cost is not too high, then the merchant will naturally buy it, and there will be a steady stream of goods every day, constantly transporting from north to south. Then this railway is not a railway, but a golden road!

"Such railways are spread all over the country, and wherever there is a rebellion, the troops stationed in the local area can be on the scene immediately. Before the rogues were on a large scale, they were exterminated.

In the past, the biggest problem of the rebellion was that the news was transmitted to Luoyang, and then troops were sent over, and the original three or five thousand rogues may have already engulfed seventy or eighty thousand people. Liu Tao sighed.

"Your Majesty has taken this into account, huh?" Jian Yong was stunned when he heard this, when he first built the railway, all kinds of parameters had not yet been understood, everyone didn't know whether this thing was useful or not, and even when many people thought it was a waste of iron, His Majesty had actually thought about its usage?

Sure enough, the disciples of the Immortal Family are the disciples of the Immortal Family, not the existence that they mortals can understand.

"That's not what I built the railroad for in the first place!" Liu Tao replied, "You already know the exploration report of the dolomite mine, right?" ”

"I already know, the reserves are indeed very amazing, and the quality is also very good, Your Majesty is far-sighted, and we are very impressed." Jian Yong replied, completely sincerely.

I never thought that there would be such a large reserve of iron ore, the quality is not bad, such iron ore has just been in the north of Yinshan, and I don't know how many generations can be found.

"Baiyun City has already started construction, so the next thing is that a large amount of ore will be mined. Although it is basically smelted into iron ingots there, transportation is a problem. Liu Tao replied, "So there needs to be something that can transport iron ingots from Baiyun City to Taiyuan and even ......other places in large quantities."

Compared to horse-drawn carriages and other things, railways are obviously the best means of transportation, after all, the cost of transportation is the lowest.

If the iron ingots are transported to Taiyuan, the transportation cost will be higher than the cost of iron, and the dolomite will become a pure national strategic reserve and cannot be used for civilian use.

The inability to use it for civilian use means that all the costs incurred in mining and transportation there have to be paid by the imperial court, which is obviously not cost-effective. Take 10,000 steps back and say, if you follow this model, Baiyun City will also become a city that completely depends on the imperial court, once the imperial court does not have other iron mines, then this place may decline rapidly.

Liu Tao wants Baiyun City to be able to make blood by itself, and also to be able to transport blood. If you can supplement yourself with nutrients, instead of the court constantly feeding it, then you will be a giant baby.

In other words, the railway must not only continue to be repaired, but also be repaired to the side of Baiyun City. After all, from Yunzhong to Baiyun City, you have to pass through the Yinshan Mountain Range, and the transportation cost is also very high.

Jian Yong suddenly realized when he heard this, and then wrote this down in a small notebook as a memo in the future.

Chatting and chatting, at about three o'clock in the afternoon, the group had already arrived in Yunzhong County......