The main purpose of the song is to revoke the right of local governments to build various projects independently, and use the technology of the Ministry of Industry to control the construction of various local facilities.

In the future, if the local government wants to build any project, it can raise its own funds and do not use the official treasury, its chief official only needs to report it, and can dispose of it without the permission of the imperial court.

However, if the money and grain in the local treasury are used, or if the imperial court needs to increase financial support, then it must be reported to the Ministry of Industry first, and then go through a whole set of processes to know whether the project will be approved.

First of all, the Ministry of Industry sent officials who specialized in the engineering technology to visit the local situation. After the expert investigated and clarified, the results of the appraisal were reported to the Ministry of Industry, and the Ministry of Industry Shangshu and the two attendants decided whether the project was approved or not based on the expert's opinion.

If, in the opinion of experts, the project is either not worth the cost or cannot be completed at all, the local officials will receive an unequivocal rejection order from the Ministry of Works.

If it can be built, the Ministry of Industry will report to the three envoys and the imperial history, and the three parties will sign a consent document together, allowing the local government to use the money and grain from the local treasury, or the three envoys will directly allocate the money and grain to the local government.

After that, the Ministry of Industry sent another official to supervise the quality of the entire project, and the three envoys would send people to supervise the use of local money and grain, and the Imperial History Zhongcheng would also secretly send out to supervise the Imperial History, and secretly supervise the Ministry of Industry, the three envoys, and whether the local officials were colluded together, and the entire project was completed.

In the north, the previous road construction projects in various places did not stop because of Zhang Dan's departure, which was originally the first project initiated by Cai Dao, so the road construction projects in the north are still expanding. For this matter, the army and merchants profit the most, and they are naturally very concerned.

Some soldiers of the forbidden army who were accustomed to engineering work and were dismissed because they did not meet the requirements did not become farmers, but joined the road construction brigade and joined the first professional road construction team in China. Most of these people are now skilled tradesmen.

However, after Cai Dao served as the third envoy, he shifted the focus of road construction from the northwest to the territory from the north bank of the Yellow River to Hedong Road and Hebei Road.

This was, of course, to prepare for the Song-Liao War that would be launched a few years later.

Of course, Zhulu is important, but in this era, when the efficiency of agriculture is too low, Cai Dao does not dare to maintain a large-scale Zhulu team, he only retains the team of technicians when he is busy farming, and the rest of the personnel are all sent back home to farm.

In order not to delay the agricultural time, Cai Dao chose all the time of the large-scale roads in the agricultural slack time, and called the peasants from all over the north to start this big project, and it was not free. Each road builder not only manages three meals a day, but also has a salary of ten cents.

Although this period of time is very short after the winter money for a month or two, however, there are many people with money, and things will be done faster when there are many people, not to mention, there are many skilled workers now, so the speed of road construction has become faster and faster in the following years.

Of course, there is also a new initiative of Cai Dao.

In order to improve the enthusiasm of the people, Cai Dao also took the process of road construction, and contracted some low-risk road sections to the private road construction team. The three divisions are only responsible for giving money, but do not contract workers and materials, and every time a mile of road is built, the three divisions will pay the money for road construction, and the private road construction team has never been in arrears.

And the main Luffy of each mile came up with an approximate figure after a lot of calculations in various places after a lot of calculations in the previous projects. The final number is Cai Dao who added one percent to this number.

At the beginning, the businessmen who dared to participate in this project were only Ding Youcai and his fellow villagers, but money was an old problem, and he couldn't look down on these government businesses that wasted time and couldn't make a lot of money.

As a result, Ding Youcai didn't say anything, he himself was the richest man in the north of the Great Song Dynasty, listening to Cai Dao's words, one was to repay his kindness, but to be the divination of the Great Song Dynasty. However, the fellows who joined this industry with him tasted the sweetness.

Although the officials of the Ministry of Industry sent by Cai Dao supervised very strictly, after several constructions, they found that after the construction of each mile of the road was completed, they were able to make two to three percent of the profits after paying the material and labor costs.

When the water is clear, there are no fish, and when people are observed, there are no fugitives.

The extra one or two percent of the profits are actually the money taken away by the local officials, and Cai Dao, no matter how strict the supervision is, will inevitably benefit from it. For this reason, he also ordered his subordinates to have a lot of secret agents under him, even the seven-color collar, to secretly investigate corruption in various places.

However, after killing a group of officials with serious corruption, and a new batch will come out soon after, Cai Dao already feels that he can't kill him. He knew that in this situation, even if it was put on Zhu Yuanzhang, the god of murder in later generations, even if he adopted such a short method as picking up skin and grass, it still could not curb the emergence of corrupt officials, let alone Cai Dao.

What's more, in the Great Song Dynasty, Cai Dao could only kill those officials at the bottom, and he could only remove the official positions of these corrupt officials from all civil officials with rank.

This is also a fundamental reason why Cai Dao gradually handed over this project to private construction.

It is profitable and will naturally attract the attention of more people.

As a result, many people and even many families are involved in it, Cai Dao is naturally happy to see it, as long as the fixed money for the construction of each mile of road is stuck, and he is sending people to supervise the quality in secret, the other party should get some profits.

However, in the process of participating, some of the nimble contractors or migrant workers also found the project profitable, and they were willing to participate, but they did not have the start-up capital. At this time, Ding Youcai received Cai Dao's instructions, and took the initiative to withdraw from the ranks of the civil contractor team, and he stepped forward to use the money in his hands to lend at low interest to those who were willing to take risks and dare to enter this industry.

This money, when the road construction fee for each mile is settled, one percent of it is counted as the regular money. Even so, those who borrowed money to build roads were profitable.

In this way, before the Liao army was completely ready, Cai Dao's method had already completely built the roads in the territory of Hedong Road and Hebei Road.