Strictly speaking, asphalt concrete still needs to be stuffed with five percent cement, but Zhang De can't ask for this. Because it is a little simpler, the top sky is mixed with some volcanic ash, and then a little cottage, that is, the asphalt gravel pavement.

Cost control, construction convenience, traffic speed and other factors, road transport is only the era of ox carts, horses and mules, basically meet the requirements.

And the asphalt gravel pavement has a good, does not hurt the hooves of livestock, under the current conditions, is a big advantage.

After all, a horse-drawn carriage, especially a four-wheeled carriage, is much more expensive than a mule or horse, and the cost of maintenance is much higher than that of an ordinary horse.

What's more, for long-distance transportation, such as the Silk Road and the Hetao, the advantage of the caravan over the four-wheeled carriage is not only that it is mobile and flexible, but also that it is highly adaptable to the terrain.

On the Silk Road, from Liangzhou to Suzhou, there is no section where the four-wheeled carriage can play its advantage.

As for the major cities, the two-wheeled carriages travel between the city and the countryside in large quantities, and then through the rivers and between the boats, and the efficiency in the short term is still quite large.

Big nobles and big businessmen can use the four-wheeled carriages made by Poly, but most of the small nobles and small and medium-sized businessmen do not have this need. But when the road conditions were greatly improved, the four-wheeled carriages, which were of slightly inferior quality, came into the reach of these people.

Zhang De's short-term goal is to hope that the number of horses and mules registered in Wuhan will be more than 100,000. This is not a mobile caravan of livestock, but a fixed stock in the Wuhan area. Only by reaching this amount can the transportation business in the surrounding areas, especially in the hills and valleys, be further satisfied.

In parallel with the plan of 100,000 horses and mules, the mileage of straight and fast tracks will increase by an average of 200 miles per month and 2,400 miles per year. This efficiency can basically meet the current transportation situation in the core area of Wuhan. The improvement of commuting efficiency in urban areas not only solves the problem of people's travel, but also solves the "last mile" problem of Wuhan's industrial and handicraft exports.

Urban planning is a long-term, complex, delicate and troublesome and challenging system engineering, as an engineering dog, Lao Zhang can only say that "I have never eaten pork and seen pigs run", and only this lost vision, in addition, he is no different from the Tang people in the Zhenguan period.

"Observation, the formula of several asphalt gravel roads tested has come out, do you want to continue to try?"

"The test still needs to be done, but the Jiangxia wharf in the south of the Yangtze River and the new workshop in Fankou will start surveying and mapping first."

"Land acquisition conditions, compare with Jiangbei?"

"The days of Jiangxia are worse than those of Hanyang, and the conditions for land acquisition can be lowered a little bit. When you meet a landlord, those who are unwilling to move their nests, you let Li Daozong, the king of the county, carry the black pot. ”

"Yes, let's go down and understand."

"By the way, Jia Junpeng came to a letter, saying that it was the reset of Henan Mansion, and there was a vacancy in the 'Grain Order', mainly to manage an imperial village, with more than 300,000 acres of land. If you want to go, I'll write back to Jia Junpeng. ”

"Sect Leader, it's all up to the Sect Leader's arrangement."

As a staff member, Zhang Qian is still Zhang De's own family, and he belongs to the unity of interests, and seeing Zhang De say this at this time, he obviously has other plans.

"My personal meaning is that you should do the 'grain order', and the benefits outweigh the disadvantages. Always have to find an official body, since the Henan Mansion is reset, it can be regarded as a 'Beijing official', and when the time comes, it will be counted as one more product. Again, you go to the capital, the news comes quickly, and I am more assured. ”

"It's all up to the patriarch to arrange."

"When the time comes, I will let Songbai go with you, it just so happens that Qu Tuquan can get along in Xinnan City, I will trust Senior Brother Sun's relationship to see if I can arrange to enter the police guard, and then work as an errand in Xinnan City."

"Okay."

said hello in advance, and after Zhang Qian left the office, Lao Zhang also sighed helplessly. Although the number of people who can be used at hand has increased a lot in the past ten or twenty years, most of them are still going around at the bottom, and those who can blend into the middle level are basically still in the circle of "Zhongyi Society".

Most of these people who are mixed up either have defects in their families or have problems in their parents. Cheng Chubi, An Bo, Li Fengjie, etc., family backgrounds, are all a bunch of problems.

At the top of the Tang Empire, there has not changed much, the only one who is lower than the slaughter level Niu Ma Zhou, one of his benefactors is Chang He, who guards the city gate, and the other is Zhang De, who led him into the East Palace.

The real upward channel is still closed, but it has been so small for 20 years, Lao Zhang has just made the "cake" a little bigger, so as not to starve to death such as Qu Tuquan and others who should have starved to death.

"Xiaobawang learning machine, there is a long way to go."

sighed loudly, looked at the hour, it was almost noon, packed up his things, put on a gauze robe, straightened his head, and planned to go home to eat, not to fill up in the official office.

The carriage moved slowly and rhythmically towards a high-gate mansion in Jiangxia City. Occasionally passing by the street, you will hear the roar of white labor fines. Unlike other places, Wuhan is quite strict in terms of hygiene. Some horse teams from other places who did not care about it were fined when they arrived in Wuhan because of horse manure.

So much so that now, as long as the horses and mules in Wuhan are in the back of their buttocks, they are all punished.

This is something that has to be done, otherwise, according to the number of horses in the future, not to mention 100,000, it is 10,000 horses, and it does not take too many batches to enter and exit every day.

As for spreading diseases, breeding bacteria, and so on, that's even more incredible.

The road was stable, the streets were quite neat and clean, and when I arrived at the mansion of Jiangxia City, as soon as I entered the door, I saw Ashid Yinchu Zheng holding a bow and twisting an arrow in the other, aiming at a haystack, and was about to let go.

"Stop!"

Zhang De shouted, but he heard the bowstring shake, and with a "whoosh", the arrow that went to the head hit the haystack.

"Zhang Lang, why is this situation turning?"

Yin Chu looked at Zhang De with a little surprise, threw the bow in his hand, and a Silla maid hurriedly caught it, and then trotted to follow.

"Oh, you Turkic woman, why don't you listen to anything? If you are pregnant, take it easy, take it easy! Why is it still like a little girl, not careful at all? ”

"What are you afraid of?!"

Yin Chu raised his eyebrows indifferently, but when he saw Zhang De's impatient appearance, he glanced at him beautifully, "Didn't you say that?" After six or seven months of pregnancy, you have to move properly. ”

"I mean move appropriately, but it's just walking, walking, not letting you shoot arrows! What if you lose your strength? This is a big no-no! ”

"When I was in Liaodi, I also saw that Khitan women were about to give birth, and they could split two bundles of firewood first, and then give birth to children. I'm just shooting an arrow, could it be that I'm not as good as a Khitan woman? ”

"Is this comparable? Why don't you listen to such a woman? ”

Lao Zhang glared at her, "It's thanks to me to turn around and see it, otherwise, I wouldn't know that you have such a personality all day long." ”

After saying that, Zhang De glanced at the Silla maid holding the bow behind him: "Remember, if Yinchu does such things in the future, you have to stop it, if you can't do it, you will ask!" ”

The Silla maid looked worried, looked at Zhang De, and then looked at Yin Chu, but she didn't dare to speak.

Ah Shi De Yin Chu grinned, picked up the chin of Silla with his fingertips, and then threw a flattering look to Zhang De: "Ah Lang, or ...... Will you ask her tonight? ”

“……”