Green Statistics：

The HZMB direct links Hong Kong, Zhuhai and Macao

There is no direct land transport linking Hong Kong with Western PRD at the moment. The HZMB will open a new and direct connection route between Hong Kong, Zhuhai and Macao. It will significantly shorten the journey for commuters/travelers and for the flow of goods between Hong Kong and the Western PRD. The new direct route will also avoid detouring and help minimise gas emissions by the vehicles.

From Zhuhai to Kwai Chung Container Port, the journey distance and traveling time will be reduced from approximately 200 km and 3.5 hours currently to about 65 km and 75 minutes respectively, representing a reduction of over 60%. From Zhuhai to the Hong Kong International Airport, the journey distance and traveling time will be further reduced from over 200 km and approximately 4 hours to about 40 km and 45 minutes respectively, with over 80% reduction.

It helps to reduce vehicle CO₂ emission by at least 1,100 tonne per day.

 

Adoption of the unprecedented non-dredge reclamation method in the reclamation of the HKBCF

The non-dredge reclamation method can reduce the amount of marine mud to be dredged and dumped by about 97%.

 

Adoption of the unprecedented non-dredge reclamation method in the reclamation of the HKBCF

The non-dredge reclamation method can reduce the amount of backfilling material by about 50%.

 

Adoption of the unprecedented non-dredge reclamation method in the reclamation of the HKBCF

The non-dredge reclamation method can reduce construction marine traffic by about 50%.

 

Combine the HKBCF and the southern landfall of the TM-CLKL sub-sea tunnel reclamations

In order to limit the extent of reclamation works and to minimise the impact on the environment, we have decided to combine the reclamations of the HKBCF and the southern landfall of TM-CLKL sub-sea tunnel. With the combined layout, we can reduce the length of seawall by approximately 1.8 km. It helps minimise the impacts on the sea and marine environment.

 

Adoption of Tunnel Boring Machines (TBMs) for the construction of the TM-CLKL sub-sea tunnel

The traditional method of constructing sub-sea tunnel by immersed tube requires complete dredging out of the marine sediments and backfilling with sand for supporting the tunnel segments. There are environmental concerns and impacts associated with the dredging and dumping of the marine mud. For the TM-CLKL, the proposed sub-sea tunnel of approximately 5 km length across the Urmston Road between HKBCF and Tuen Mun is planned to be constructed by two approximately 14 m diameter TBMs boring underneath the seabed. With the adoption of TBM to construct the proposed sub-sea tunnels, it will avoid the dredging and disposal of some 11 Mm³ of marine sediment that would otherwise be required for construction by traditional immersed tube method.

Adoption of the unprecedented non-dredge reclamation method in the reclamation of the HKBCF

The non-dredge reclamation method can reduce the amount of suspended particles during construction by about 70%.