1.55km-The longest sea-crossing bridge in the world was completed and opened to traffic.

The bridge connecting Zhuhai, Hong Kong and Macao was officially opened to traffic on 1 October 24th, 2008, which greatly shortened the traffic time of the three places and formed a "1hour living circle".

According to the statistics of Hong Kong-Zhuhai-Macao Bridge Border Inspection Station, Zhuhai Highway Port of Hong Kong-Zhuhai-Macao Bridge has checked and released more than 2.9 million passengers since the bridge was opened two months ago. Among them, the number of Hong Kong and Macao residents entering and leaving the country has increased steadily, with Hong Kong residents accounting for nearly 30%, and the number of Macao residents has also jumped sharply.

The Hong Kong-Zhuhai-Macao Bridge is a super project integrating bridge, island and tunnel, with a total length of about 55 kilometers. It is the longest cross-sea bridge in the world and the first super-large cross-sea traffic project jointly built by Guangdong, Hong Kong and Macao.

This super project has "six firsts": it is the sea-crossing bridge with the longest total span, the longest steel structure bridge and the longest immersed tunnel in the world, and it is also the bridge with the most complicated technology, the most difficult construction and the largest project scale in the history of world highway construction.

Its opening to traffic marks a new step in the construction of bridges and tunnels in China. Some commentators pointed out that the completion and opening of the Hong Kong-Zhuhai-Macao Bridge is conducive to personnel exchanges and economic and trade exchanges between the three places.

It is conducive to promoting the development of Guangdong-Hong Kong-Macao Greater Bay Area, enhancing the comprehensive competitiveness of the Pearl River Delta region, and providing new opportunities for Guangdong, Hong Kong and Macao to achieve complementary advantages and win-win results.

2. 19 satellite-Beidou-3 basic system constellation has been deployed.

165438+1October 19 China successfully launched the 42nd and 43rd Beidou navigation satellites in xichang satellite launch center by means of "one arrow and two satellites". These two satellites belong to medium-earth orbit satellites.

It is the 18 and 19 networking satellites of Beidou-3 system in China. Since then, the deployment of the Beidou-3 basic system constellation has been successfully completed, which will provide basic services such as navigation for countries and regions in the Belt and Road Initiative. The industry believes that China North

Strive to take a "key step" from domestic to international and from regional to global. Beidou No.3 Project was started in 2009, and the networking was implemented in three steps: the simplest system, the basic system and the global system.

Previously, the Beidou-3 networking satellite was first launched in 20 17 1 1 month; At the end of March 2065438+2008, the simplest system constellation consisting of eight Beidou navigation satellites was deployed.

According to reports, before the end of 2020, China will build a global system consisting of more than 30 Beidou navigation satellites with global service capabilities. By 2035, a more ubiquitous, integrated and intelligent integrated space-time system will be built.

According to media reports, China began to explore the development path of satellite navigation system suitable for national conditions in the late 20th century, and gradually formed a "three-step" development strategy.

Beidou-1 system was completed at the end of 2000, providing services to the whole country; Beidou-2 system was completed at the end of 20 12 to provide services for the Asia-Pacific region; Beidou global system will be built around 2020 to provide services to the whole world.

30,000-29,000 kilometers-New breakthroughs have been made in the operating mileage of high-speed rail.

A week before the end of the year, new high-speed rail lines were intensively opened 10, and the new high-speed rail operating mileage was about 2,500 kilometers, and the national high-speed rail operating mileage will reach 29,000 kilometers.

These 10 new lines are: Chengde-Shenyang section of Jingha high-speed railway, Xinmin-Tongliao high-speed railway, Harbin-Mudanjiang high-speed railway, Jinan-Qingdao high-speed railway, Qingdao-Yancheng railway, Hangzhou-Huangshan section of Hangzhou-Changzhou high-speed railway, Nanping-Longyan railway, Huaihua-Hengyang railway, Tongren-Yuping railway and Chengdu-Ya 'an railway.

The investment of the new line has further shortened the running time of passenger trains between some cities. For example, Harbin to Mudanjiang is compressed for 3 hours, Tongliao to Shenyang is 2 hours 2 1 minute, and Beijing south to Qingdao is 58 minutes.

Among the newly opened high-speed rail lines this year, the Hong Kong section of Guangzhou-Shenzhen high-speed rail is particularly eye-catching. This new line, which was opened to traffic on September 23rd, marks that the Hong Kong SAR has officially joined the national high-speed rail network and entered a new era of high-speed rail.

The opening of this line has not only made Guangdong-Hong Kong-Macao Greater Bay Area's "1 hour living circle" a reality, but also the high-speed rail networks connected with it, such as Wuhan-Guangzhou, Guangxi-Guangzhou, Nanguang and Xiamen-Shenzhen, have broadened the "four-hour tourism circle" between Hong Kong and mainland cities, bringing huge business opportunities for Hong Kong tourism.

According to the data of the Transport and Housing Bureau of the Hong Kong SAR Government, as of June 29th, 165438, the total number of passengers in the Hong Kong section of the Guangzhou-Shenzhen-Hong Kong high-speed rail exceeded 3.4 million, and the average daily passenger traffic exceeded 50,000.

According to the Medium and Long-term Railway Network Planning, by 2020, the scale of railway network will reach 6,543,800+0.5 million kilometers, including 30,000 kilometers of high-speed railway.

4.1.20,000 trains-Central Europe trains reach 15 countries and 49 cities.

The third plenary meeting of the China-Europe Train Transportation Coordination Committee held recently informed that at present, the cumulative number of trains in China and Europe has exceeded 6,543,800+0.2 million. From 20 18, 1 to 1 1, the number of trains running reached 56 1 1, a year-on-year increase of 72%.

The number of trains running in the whole year is expected to exceed 6,000, and the goal of "running 5,000 trains a year" set in "China-Europe Train Construction and Development Plan 20 16-2020" has been achieved two years ahead of schedule.

It is reported that the two-way transportation between China and Europe has become increasingly balanced, and the proportion of return trains to the starting trains has reached 7 1%, basically achieving "four returns and three returns". The business scope is constantly expanding, with 56 cities in China and 49 cities in Europe 15 countries.

The transportation of goods has also gradually expanded from early IT products such as mobile phones and computers to clothing, shoes and hats, automobiles and accessories, grain, wine, coffee beans, wood pulp, furniture, chemicals and other categories.

The industry believes that the development and construction of China-Europe trains across the country is gradually moving towards a new stage of high-quality and sustainable development, which has played a positive role in improving the level of interconnection and economic and trade cooperation between countries along the Belt and Road and releasing the potential of logistics channels in the Silk Road Economic Belt.

It is reported that China-Europe train has developed rapidly from scratch since it was launched on 20 1 1, and its scale and quantity have shown a blowout growth trend. Today, the China-Europe train has initially achieved its return. With the improvement of international railway cooperation mechanism, the brand effect of China-Europe trains will continue to expand.

5. 140m —— The trial of the largest self-propelled cutter suction dredger in Asia was successful.

On June 12, the first self-propelled cutter suction dredger in Asia designed and built by China successfully completed its first trial. This marks a key step for Tian Kun to become a real dredging weapon.

Tian Kun is140m long and 27.8m wide, with a maximum excavation depth of 35m and a total installed power of 25,843kW. It is designed to dredge 6000m3 per hour and the rated power of the reamer is 6600kW.

It indicates that China has been able to independently design and build a new generation of heavy-duty self-propelled cutter suction dredger, and has achieved a breakthrough in key technologies of this type of dredger. Compared with previous dredgers, Tian Kun has many innovations in technology.

For example, it is equipped with the most advanced intelligent integrated control system of cutter suction dredger in China. With this "brain", it can display the three-dimensional soil quality of dredging in real time and calculate the tidal level. Through simple operation, it can automatically locate and start dredging.

It is reported that heavy dredgers are important basic equipment in high-tech and capital-intensive countries. In the past, only a few countries in the world mastered the core technology of independent design and construction.

Only by realizing the independent design and construction of heavy dredgers can we be independent of people and realize the independence of river dredging, waterway excavation and coastal construction.

China Economic Net-On the Great Achievements of China's Economic Development in 20 18