Once these roads are completed, no matter if there is a problem anywhere within the jurisdiction of Tamsui City, the personnel and materials from other places can easily and quickly arrive at the accident site, and at the same time, it also greatly improves the flow speed of materials in the area of Tamsui City, providing favorable conditions for the next step to continue to expand the territory.

Although this kind of road is not wide in later generations, it is really not wide, but in this era, it is definitely a sunny avenue, even if it is a post road between the cities of the Ming Dynasty on land, it is far from reaching such a width, and some important post roads, the width is even less than two meters, and a one-meter-wide post road is considered a good road.

Most of the post roads on land are just a solid road surface that is casually rolled out of the land with stones, and there is neither sand nor stone slabs on it, it is a dirt road, and there is no maintenance.

There is no drainage canal on both sides of the post road, walk on the post road when the weather is dry, one foot is deep and one foot is shallow, full of floating soil, the ancients received friends and said that they washed the dust, in fact, it is very vivid, go down on such a road, eat less soil is not good, and each pedestrian is the appearance of a gray face.

Over the years, this kind of road has been run over by pedestrians and vehicles, and gradually it will lower the road surface, after a long time, it is said to be a road, in fact, it is more like a ditch, once it rains, this road becomes a ditch, and no one maintains it, and the vehicles are crushed everywhere with potholes, and this kind of road is simply a series of mud pits on rainy days, and it is difficult to walk up to praise them.

It is no wonder that military operations were very difficult in ancient times, a large-scale battle, the preparation time is very long, sometimes from the decision to move troops, to the actual start of the army, the longest even takes a year, the shortest also takes three months to complete.

In addition to the procrastination of the bureaucrats, the difficulty of the road is also a very important reason, the war needs materials, all kinds of materials must be concentrated at the starting point first, the road is really not strong, a little rain, basically impossible to go, so the preparation time of materials takes a long time.

Even if the supplies were finally prepared and the troops began to march, the speed of the army's action was as slow as a snail, when Yu Xiaotian was reading a book or surfing the Internet before, he saw a lot of information about the speed of the ancient army, saying that the distance of the ancient army in a day would not exceed thirty miles under normal circumstances, and sometimes it could only walk more than ten miles, so he wondered what this was for.

But after he walked a few times on land, he understood what this was for, the ancient road was really speechless, the army not only acted as a soldier, but also carried a large number of baggage materials and cannons, these things must be transported by vehicles, on such a road to go fast, it is simply impossible.

The soldiers had to build roads as they walked, open up roads for vehicles, and stop early in the afternoon to set up camp, which really couldn't take long in a day, and the roads couldn't meet the needs of large-scale material deliveries.

But Yu Xiaotian is determined that in the territory under his control, there can be no similar situation, roads are the foundation of people's livelihood, and they are also important military facilities, without a decent good road, it will not work, once there is something scattered material and manpower, it is difficult to quickly mobilize, let alone respond quickly.

The Ming Dynasty's northern Jiannu and the Ming army were in a mess, and the troops in the north were not very sufficient, even at the most critical moment, the Ming court did not easily transfer the southern army to the north, also because of the road.

From Sichuan to Liaodong, during the period from sending people to pass orders, to the local army to accept orders to start preparation, it takes a long time, and then march, and it takes a long time, often do not wait for the local army to go to the place, the war in the place of the accident has already ended, so it is said that the Ming standing army has a lot of numbers, but until its demise, it is very rare to transfer troops from the south to the north to participate in the war, road restrictions are undoubtedly an important reason.

This time, Yu Xiaotian is going to make a big deal to completely renovate the roads in Tamsui City, and to completely change the situation that the road traffic situation here was too poor before.

The road construction project was started at the same time as the canal repair project, and after nearly half a month of rectification, the townships and villages have become much better, and no one under the stick dares not to pay attention to the sanitary conditions of their residences, and the villages have access to clean water sources, and drainage sewers have been dug out, and the sewage in the villages is no longer cross-flowing, and the water pits in many places have also been filled, improving the environment around the villages.

In addition, after the early mobilization, the villages also began to make preparations for the construction of water canals, and the construction planning drawings responsible for each village were also distributed to the villages.

As for the excavated earthwork, in addition to reinforcing the embankment on both sides of the ditch, the extra earthwork is used to fill in some low-lying areas, and it is also piled up along the road to be constructed.

Nearly 1,000 slaves from the camp and slaves purchased from various places were gathered, and nearly 200 chicken wagons were distributed.

In addition, a large number of newly transported shovels, pickaxes, rattan baskets, and bamboo baskets have also been put in place, and the stonemasons of the quarry have also used the quarried boulders to carve out more than a dozen large stones for rolling the road.

According to the original plan, these laborers were divided into six groups and began construction in six places at the same time, basically without animal power, all by manpower.

To this end, a squadron of more than 200 soldiers was dispatched to guard and supervise the laborers and slaves, as well as personnel in charge of planning and bookkeeping, to assign tasks to the laborers and guide them in construction.

Before the official start of the road construction project, Yu Xiaotian had already carried out experimental construction on the road leading to Chuanliao outside Tamsui City, in order to train some supervisors to prepare for the next large-scale construction.

The road construction standards designed by Yu Xiaotian are actually copied from the construction style of rural roads in later generations, and many rural roads in later generations, because of limited funds and financial resources, did not use cement or asphalt to pave roads, and they were also made of local materials, and almost all of them were used to build roads, but the roads built were basically dirt roads.

But even the most backward country roads in later generations are much stronger than the main roads here now, at least the roadbed of the country roads has been tamped and rolled, and a layer of gravel or slag sand must be paved on top of it, at least there will not be a lot of mud on rainy days.

Therefore, under the limited conditions, he can only adopt such a road construction method because of the ugliness.

According to Yu Xiaotian's plan and requirements, two drainage ditches must be excavated on both sides of the road, and the excavated earthwork must be piled on the road as a foundation, and mixed with lime and sand to make it into a triple soil, and then the roadbed will be thoroughly compacted or tamped by ramming or repeatedly rolling with a stone stone.

After the roadbed is compacted, a layer of slag or gravel or sand is also mixed with lime to completely roll the roadbed.

The cross-section of the road is curved, so that even if it rains heavily, the rainwater will immediately flow into the ditches on both sides and drain away, so that there will be no water accumulation on the road, so that the road will not be damaged continuously.

As for the slag, there is not a lot of slag from the sea wolf for the time being, but a lot of waste slag will be discharged from the molten iron furnace, which can be directly used to pave the road, and it is also piled up everywhere and occupies farmland.

In addition, there are a lot of slag and waste products in the brick kiln and porcelain kiln, which can be used to repair the road, directly transported to the road, and crushed and paved on the road with stone stones.

In short, many problems have been solved, and many wastes that have nowhere to be thrown away before have become treasures, which are no longer allowed to be disposed of casually, and need to be transported to the road construction site to be paved on the road surface for use.

In order to solve the problem of manpower, Yu Xiaotian asked people to inform some colleagues who had cooperated with them in the past to increase the efforts to transport slaves to the sea wolf in the near future, and get more slaves to come over and devote themselves to road construction.

But it's easy to say, it's still very difficult to do this kind of thing like road building, even if Yu Xiaotian sent people to make some preparations in advance, and it was to carve and chisel stones, and to make chicken carts, and also prepared a large number of tools, bamboo baskets and rattan baskets, and in some places it is not easy to build because of many stones.

So Yu Xiaotian had no choice but to use some of the soldiers who specialized in learning blasting to invest a large amount of gunpowder and carry out blasting operations in order to open up the roads in some places, otherwise they could only send stonemasons to carve and chisel a little bit, then these roads would not know that the roads would be repaired to the year of the monkey.

Although the lives of slaves and hard laborers are not valuable, they are also bought by money or effective labor, and they cannot be wasted casually, otherwise the road will not be completed, but it will almost tire people to death, and it is not very cost-effective, after all, there will be a lot of work to be done on the side of Tamsui for a long time in the future.

So Yu Xiaotian asked to increase the diet of these coolies, although it is not too nutritious, but brown rice twice a day, it is still almost enough for them, and salt is for them to eat, at least to ensure that they have the physical strength to work, and they will not be exhausted to death in batches after just a few days.

With Yu Xiaotian's order, several road construction sites immediately began to get busy, and the supervisors who had just undergone simple training shouted loudly on the construction site, assigning tasks to the foremen in the coolies, telling them what to do and how to do it.