Why doesn't Guangzhou Line 18 pass through Shenzhen?

Tell a joke, Guangzhou and Shenzhen face each other across the sea.

Of course, Guangzhou and Shenzhen should transfer to the subway, but I don't think we should cross Humenkou at the location of Guangzhou Metro Line 4, then connect Dongguan Metro and then Shenzhen Metro. This is really unnecessary, and the subway stops at every station, and the long journey is really annoying.

I think the most reasonable thing is to extend the Guangzhou Metro 18 line to Shenzhen Airport, or add a branch line to Wanqingsha on the Shenzhen Metro 1 1 line.

Because Guangzhou Metro 18 and Shenzhen Metro 1 1 are both high-speed subways, and the station distance is relatively long, and they connect the CBD of the two cities respectively. By transfer, you can also reach Guangzhou South Railway Station through Guangzhou Metro Line 22.

This construction is very beneficial to Shenzhen airport. Shenzhen Airport can further attract tourists from Nansha, Zhongshan and Jiangmen and become the central airport of Guangdong-Hong Kong-Macao Greater Bay Area. For Guangzhou, this is also an opportunity to attract Hong Kong and Shenzhen capital. Nansha, on the other hand, will inevitably attract Shenzhen people to live in the past. Coupled with the construction of the deep channel, the traffic between Guangzhou and Shenzhen will be opened, and Guangzhou and Shenzhen can no longer be connected through Dongguan. With the dual efforts of Guangzhou and Shenzhen, we can become the transportation center of Guangdong-Hong Kong-Macao Greater Bay Area from the edge of Guangzhou, and then become one of the economic centers.

I feel that this answer is read by many people. Say it again.

1. I don't know the technology, but I think the construction of this project is not complicated. It should be technically feasible to build a submarine subway tunnel between the Guangzhou Metro 18 line under construction and the completed Shenzhen Metro 1 1 line. Shiziyang tunnel of Guangzhou-Shenzhen-Hong Kong high-speed railway can be built as early as ten years ago, and now the technology should be more mature.

It can be seen that Shiziyang Tunnel passes through three waters, but in fact, in the Pearl River Delta, the land-water boundary is not obvious, and the river bank is also covered with a large area of sediment. Shiziyang tunnel 10.8km, and this tunnel is about 16km.

2. This project will not affect the original Pearl River Delta intercity rail transit, and it will not be duplicated with Guangzhou-Shenzhen-Hong Kong high-speed railway, Guangzhou-Shenzhen intercity line and Guangzhou-Shenzhen-Guangzhou intercity line, and its functions will not be completely duplicated.

Although there are many trains on the urban rail, they are not as good as the on-call subway. The subway can have more transfers, which is convenient to reach more places, and the city railway is far from the city center.

3. Guangzhou Metro 18 and Shenzhen Metro 1 1 are almost the most direct routes from Guangzhou (Zhujiang New Town) to Shenzhen (Futian), passing through guangzhou east railway station, Zhujiang New Town (Xiancun Station), Pazhou, Nancun Wanbo, Panyu, Nansha and Shenzhen New Convention and Exhibition Center.

4. Guangzhou Metro 18 line is estimated to take 30 minutes from guangzhou east railway station to Wanqingsha, and Shenzhen Metro 1 1 line takes about 40 minutes from the airport to Futian. Together with the time of crossing the sea tunnel and transfer time, the whole journey takes about one hour, which is faster than Guangzhou-Shenzhen intercity. If you count the time in high-speed railway station, it may be faster than the Guangzhou-Shenzhen-Hong Kong high-speed rail.

Don't worry about no passenger flow, worry about whether there is enough traffic. After all, Shenzhen Metro Line 1 1 has a very large passenger flow. So this leads to another problem, that is, it is not feasible to solve intercity traffic with urban rail transit.

Interests: non-Guangzhou or Shenzhen people, studying in Shenzhen, interested in urban planning.