After telling an interesting Kuafu story, the convoy has arrived at the foot of Lishan Mountain, and the sun that Kuafu has been chasing hard has also set, and the surrounding scenery has become extremely dark, but the overall visibility is okay, and the distance of one or two hundred steps ahead can still be seen clearly, but for absolute safety, the convoy still turned on the lights.

The lights in the car are also all turned on, so that the environment in the car will appear warm and comfortable, and people will be more comfortable to sit in.

As the sun continued to set, the red clouds in the west gradually darkened, and finally completely lost their brilliance, and then disappeared completely.

The night has come, and the convoy is still halfway through, however, from the foot of Lishan Mountain to Chang'an City are broad and flat roads, as long as the vehicle is driving slowly, there will be no safety accidents, and it is impossible to roll into the ditch, so there is no need to worry about safety problems at all, and they are all old drivers, and the driving skills are absolutely guaranteed.

The sun sets means that the moon and stars in the sky are about to appear, and in the Tang Dynasty, where the environment is almost not polluted, the sky is clear, so that not only during the day, you can see the clear blue sky, but at night, it is easier to see the stars in the sky.

No, not long after the sun set, the moon and stars in the sky gradually became clear, and they looked very beautiful, like jewels, inlaid in the night sky.

When he is not working, Ang Lee often looks up at the stars and looks at the constellations to pass the time of boredom, but when he is busy, he often has no time to look at the stars for many days.

For example, in a civilized society, people living in cities basically can't see the stars a few times a year, but people living in the countryside will look at the stars almost every day, because the city is too busy, and there are a lot of lights at night.

After the Tang Dynasty entered the development of industrialization, people have become more and more busy, however, compared with the civilized society of later generations, it is still far behind, at least, there is still time to see the stars and the moon, and moreover, you can also see the beautiful moon and stars.

"Test you, where is the Cowherd Star?"

Li An looked at the emperors and grandsons and asked.

"There, there."

The children saw the Cowherd Star in the sky through the car window, and they all stretched out their fingers to point over, and there were some things that were not clear, and they also pretended to know it.

"Where is Vega?"

Ang Lee continued to ask.

"There, across the Milky Way, it's brighter than the Cowherd Star."

"Oh, what about Sirius that day?"

"The brightest star is Sirius."

"Haha! Your answer is so good, it seems that I really didn't teach you in vain, but there are too many stars in the sky, and it takes a lot of time to learn them all, so you must work hard to learn, and when you have free time in the evening, let's look at the stars together. ”

Ang Lee said with a smile.

"Okay."

The convoy drove unhurriedly, and arrived at Chang'an City safely after half an hour after dark, because the curfew had long since ceased to exist, so the convoy entered through the city gate unimpeded, and there were many pedestrians entering and exiting the city gate, most of them were busy merchants, and the personnel hired by the merchants to transport supplies.

Because the population of the capital is increasing, and commerce has become extremely prosperous, which has caused the frequent transportation of materials, the ingredients needed by the various restaurants and shops in the city alone are a large number, and many ingredients need to be transported from outside the city, which naturally increases the traffic burden of the city gate.

In order to relieve the pressure of traffic, the main gates of the capital are all wide open, and as long as there is no foreign invasion, they will never be closed.

When the merchants transport larger materials, they will also choose to cooperate at night, because there are fewer pedestrians at night, the traffic pressure at the city gate is very small, and the vehicles can pass more smoothly, and during the day, the city gate is full of people, and the merchants' convoys will be blocked by the flow of people, and the action is very slow, and even, directly lead to the paralysis of traffic, so that everyone can not pass at once.

In order to better standardize transportation, the court has adopted a fixed transportation time for many bulk commodities, such as what time to enter the city at night for a certain commodity that is urgently needed in the city, and what time to enter the city for another commodity to enter the city, etc., so that the different commodities can enter the time staggered, which can reduce the pressure of traffic to a greater extent, so that each city gate can be unimpeded at any time period, so as to improve the operation efficiency of the entire city

Several main gates of the capital are very tall, and there are as many as five door openings alone, in the beginning, pedestrians can only choose to walk the two small door openings on the far side, and the three large door openings in the middle are closed, especially the middle one city gate, which is only the emperor can walk.

However, with the gradual increase of traffic pressure, two of the middle gates were also opened, only the middle gate was not opened, and a total of four gates on both sides were used.

In this way, pedestrians on foot and on horseback can walk through the farthest gate, and the middle gate can be used for all kinds of vehicles, which can greatly improve the efficiency of traffic.

As the land in the city becomes more and more expensive, there are naturally fewer and fewer places to park, so many people who do big business will choose to park many vehicles outside the city, and when they need to transport a large number of materials, they will choose to accelerate into the city at night, quickly transport the materials away, and then continue to park outside the city.

This problem was also more common in later generations, in the center of many cities, parking spaces became extremely scarce, for this reason, a large number of underground garages had to be built, even so, it was difficult to solve the problem of difficult vehicle parking, so that even had to park vehicles in the suburbs, as a bus into the city.

There is a car but can not enjoy the use, this has to be said to be a sadness, there are also people put forward the three-dimensional parking space, that is, the vehicle is suspended and parked, however, such a parking method has certain limitations, that is, it is too inconvenient, every time parking and pick up the car is a very uncomfortable process, and, once the three-dimensional parking space fails, the car is very likely to be smashed.

The current buildings of Chang'an City are still very primitive, most of the houses are still civil structures, basements are impossible to exist, only a small number of houses are concrete structures, but when they were first built, in order to consider the cost, they basically did not build large underground garages, which gradually formed a big problem.

Parking problem has become more and more difficult big problem in Chang'an City, as Chang'an City is more and more prosperous, the original living conditions are very average people have begun to have their own vehicles, many people like to take a car to the downtown area to shop, which can reduce a lot of time, but in this way, but also make the parking problem in the downtown area become a big problem.

In desperation, the imperial court had to sacrifice part of the wide road surface and draw a row of parking spaces on both sides of the road, so that vehicles can pull over, so as to temporarily alleviate this problem, and in this way, it also caused another big problem, that is, the width of the road was invisibly narrowed, and the traffic capacity of the road was reduced a lot.

But now that the problem is already in front of us, we can't sit idly by, we can't watch the problem get worse and worse, and we must do everything we can to solve this problem.

"There are more and more cars in Chang'an City, and many places can't park, which is a big problem!"

Li An looked at the various vehicles that occasionally passed by and spoke.

Li Yu looked at Li An and said: "That's the case, especially in Pingkangfang and Dongshi Xishi, the parking problem is particularly big, traffic jams are a frequent occurrence, and many businessmen can only choose to transport goods at night in order to avoid traffic jams." ”

"This problem must be solved as soon as possible, otherwise the problem will become more and more serious."

Li An said.

Li Yu shook his head helplessly, and said: "Everyone wants to solve this problem, but there are more and more vehicles, and the place is only so big, it is impossible not to block, unless part of the houses are demolished, so that there is a place to park, however, the houses in these places are very expensive, every inch of land, and who can be willing to demolish the house, and if a large number of buildings are demolished, these places will become less prosperous, so that no one will come, and the vehicles will disappear all at once. The parking lot was also in vain. ”

Regarding the problem of parking difficulties in the downtown area of Chang'an City, the imperial court has studied it many times, but after the fierce debate of the ministers, no constructive measures have been taken, and finally it is only proposed to change the most marginal position on both sides of the road to a parking lot to solve the urgent need.

This measure came at the expense of road capacity, and for a considerable period of time after its implementation, instead of solving the problem of parking difficulties, it caused more serious traffic congestion, and the frequency of congestion became even higher than before. For this reason, the imperial court had to send a large number of personnel to these areas to maintain transportation, which greatly increased the burden on the imperial court.

As the people's demand for solving the congestion is getting louder and louder, many officials have begun to impose regulations restricting personal vehicles from entering the downtown area, such as people with relatively low status are not allowed to enter the downtown area by car, and only people with distinguished status can enter the downtown area by car.

However, this measure has not yet been implemented, because it is very discriminatory, will be resisted by the people at the bottom, and is more likely to cause injustice in the whole society.

In Ang Lee's heart, the real reliable solution is to increase the parking spaces in the downtown area, only when the number of parking spaces increases, can this problem be fundamentally solved, and other methods are unreliable.

The construction of parking spaces must not be solved by sacrificing the road capacity, nor can the method of demolishing buildings.

In this way, there is only one best way left, that is, to renovate the building, the construction of underground parking lots, only this method is the most reliable way, the area of Pingkangfang and the East City and the West City is very large, if the parking lot is built below, you can imagine how much parking area can be increased, and how many vehicles can be parked.

Most of the shops belong to individuals, and it is up to them whether they build underground parking lots below, but the merchants who build the parking lot will inevitably be able to get great benefits, while the businessmen who do not build the underground parking lot are easy to suffer losses in the business field.

For example, there are underground parking facilities under a restaurant, which cooperate with the ground parking area to park a large number of vehicles, so that many consumers are willing to go to this restaurant to eat and drink, and the restaurant next to it is unable to park, and the business will naturally be deserted step by step, which is a very normal phenomenon, the service industry is to serve in place, if the service is not in place, then why should others pay, why can't they go to other consumption places.

In addition, there are a lot of criss-crossing roads in various places, and under the road, it is possible to build a super-large parking lot, and build an entrance and exit at intervals, so that the problem of parking difficulty can be solved.

The underground parking garages of each restaurant and shop naturally belong to individuals and need to be built at personal expense, while the parking spaces under the road need to be built by the imperial court, and the imperial court needs to pay for it.

But the imperial court spent so much money to build a large parking lot, and there must be a way to recover the cost! In this case, a certain amount of charging is required.

For the safety of the underground parking lot, there is also a need for special people to be responsible for patrolling, which to a certain extent, increases the city's employment and will further promote the city's prosperity.

Li An told Li Yu his idea and suggested that Li Yu make this suggestion to the imperial court, so as to increase Li Yu's prestige and help him inherit the throne in the future.

"The cost of building underground parking spaces is much higher than building roads! Even if parking fees are charged, it will take decades to pay for itself, and in addition, the traffic pressure is already very high, and if the traffic is hindered by construction, the congestion will become more serious. ”

Li Yu opened his mouth to express his concerns.

Li An shook his head and said: "King Guangping should not only look at the cost of construction, but also look farther, this is a good project for the benefit of the country and the people, it will increase the prestige of the imperial court, in addition, the construction of a parking lot under the road will not affect the traffic above, will not cause further traffic congestion, this can be assured." ”

Chang'an City is originally located on the Loess Plateau, the strength and viscosity of the loess are very good, it is not easy to collapse under normal circumstances, as long as the thickness of the loess is maintained, there will be no safety problems, and when building, the following must be supported with concrete.