The Fehmarn Belt fixed link : Why Denmark is Building World's Longest Immersed Road & Rail Tunnel ?

Why Denmark and Germany are building the Fehmarnbelt fixed link.
Faster journey
When the Fehmarnbelt tunnel is completed, the journey between Rødbyhavn and Puttgarden will take seven minutes by train and 10 minutes by car. Road users and train passengers will save about one hour each way compared to the ferry crossing. The Fehmarnbelt link will be open 24 hours a day as a tunnel is not affected by wind or weather.
Greener transport
The Fehmarnbelt link is an important component in the future European transport network and will make an important contribution to the green transition of the transport sector. Enabling traffic to use the shortest and fastest route will reduce CO2 emissions and free up capacity on roads and railways. Switching the transport of freight from lorries to environmental-friendly electric trains will also be more attractive.
More capacity on motorways and railways
The more direct route between Scandinavia and Central Europe means that European freight trains in transit, which currently take up rail capacity on Funen and Jutland, can be replaced by more passenger trains between different parts of the country. The journey time for train passengers between Copenhagen and Hamburg will be cut from four and a half hours to two and a half.
Commuting made easier
Denmark is preparing the rail connections to and from the tunnel for modern electric trains that will run up to 200 km per hour. Commuters on the section can therefore look forward to significantly shorter travel times - regardless of whether they use the tunnel.
Jobs and apprenticeships
The construction of the Fehmarnbelt link will create several thousand jobs at the construction sites and with the sub-contractors. The contractors have also committed to the establishment of at least 500 full-time apprenticeships.
With its 18 kilometres, the Fehmarn Belt tunnel will be world's longest immersed tunnel for both road and rail. When finished, it will shorten the trip from Copenhagen to Hamburg by 160 km.
AFRY and sub-consultants contribute to the tunnel on several levels:
Design of mechanical and electrical systems for communication, HVAC, fire, drainage, power supply, data network, lighting, access control, PA, CCTV, weather surveillance, traffic detection, emergency stations, tolling and ITS.
In-house consultancy services for review and provision of in-house resources related to construction management, excluding railway systems and safety.
Client: Femern A/S
Object: 18 km immersed road and rail tunnel
Location: Fehmarn Belt
Project: Fehmarn Belt tunnel
Period: Expected completion in 2028
Our role: Design of mechanical and electrical systems for communication, HVAC, fire, drainage, power supply, data network, lighting, access control, PA, CCTV, weather surveillance, traffic detection, emergency stations, tolling and ITS.
This project is comparable in size to that of the Øresund Bridge or the Great Belt Bridge. According to a report released on 30 November 2010 by Femern A/S (a subsidiary of the Danish state-owned Sund & Bælt Holding A/S), the company tasked with designing and planning the link between Denmark and Germany, the corridor for the alignment of the link has now been determined and will be sited in a corridor running east of the ferry ports of Puttgarden and Rødbyhavn.
On the German side, work began on preparing the small-scale construction site on Fehmarn in the spring of 2021. A small-scale work harbour and a portal building will also be established here. This work will begin in 2022.

[@paolachico]

A fantastic work. when could it be finished?

[@someopinion922]

2029

[@paolachico]

@@someopinion922 Thank you so much. Greetings and good luck.