Uncertain timeline for the building of the S-Bahn in east Hamburg remains undecided - Planned Building Timeline for S-Bahn in Eastern Hamburg
### S-Bahn 4 Construction Delay and Operation Impact
There has been no reported delay in the construction of the S4 (S-Bahn line 4) in Germany, as of the current search results. However, the S45 and S9 lines, which connect to Berlin Brandenburg Airport (BER), will experience disruptions during late July 2025 [1].
#### Clarification: Which S-Bahn Line Is Affected?
The affected lines are S45 (Südkreuz – BER Airport) and S9. Construction on the S-Bahn network, between Baumschulenweg and Treptower Park, will halt S9 service to BER Airport, leaving only S45 operational until August 4, 2025 [1]. During this period, full service disruption will occur from July 24 (4:00 AM) to August 4 (1:30 AM), with S45 running every 10 minutes and S9 suspended [1].
#### Deutsche Bahn and Authority Role
Deutsche Bahn (DB) and local authorities are following standard protocol, advising passengers of disruptions and offering partial substitute services [1]. At this time, there is no mention of federal intervention in the specific S-Bahn construction delay. The construction is described as part of ongoing infrastructure upgrades to improve long-term reliability [1].
#### General Renovation and S-Bahn 4 East
The general renovation of the railway line from Hamburg to Lubeck will also affect the S-Bahn construction. The Deutsche Bahn (DB) originally planned to start the general renovation in the second half of 2027, but has proposed shifting the date to the second half of 2028 [2].
The new S-Bahn line 4 from Hamburg-Altona to Bad Oldesloe is expected to be delayed due to this renovation. From Bad Oldesloe, the S4 will use the mainline tracks [3]. The DB spokesperson stated that the final impact on the S4 construction will depend on the decision made by the Federal Government [2].
The S4 is intended to better connect the east of Hamburg and the surrounding area. The S4 is scheduled to run between Hamburg-Altona and Ahrensburg every 10 minutes during peak hours, every 20 minutes to Bargteheide, and every hour to Bad Oldesloe [4]. During the renovation, the entire route between Hamburg and Lubeck will be closed [5].
#### Ongoing Discussions and Potential Delay
Harald Haase, spokesman for the Kiel Ministry of Economics, mentions ongoing discussions with the DB regarding the delay of the general renovation and its potential impact on the S4 East [6]. The project includes the construction of a double-track S-Bahn line from Hasselbrook to Ahrensburg and a single-track S-Bahn line from Ahrensburg to Ahrensburg-Gartenholz [7]. The general renovation may have considerable synergies with the S4 East, implying a possible delay.
#### Conclusion
While there is no evidence of disruptions to S4 (S-Bahn line 4) in the search results, the S45 and S9 lines to BER Airport are affected by construction, with clear communication from local authorities and DB, but no federal intervention or significant policy change is indicated [1]. Recommendations for affected passengers are standard: plan ahead, check the local public transport authority (VBB) for updates, and use alternative transport during disruption periods [1].
If your question pertains to another S-Bahn line or region, please provide additional details, as the available information focuses exclusively on BER Airport connections, not the S4.
References: [1] https://www.berliner-zeitung.de/verkehr/s-bahn-berlin-s45-s9-ab-24-juli-2025-kein-betrieb-more-104340568 [2] https://www.deutschebahn.com/service/presse/pressemitteilungen/2021/02/2021-02-25-db-verzichtet-auf-ausbau-im-nordosten-deutschlands-zugunsten-von-infrastruktur-sanierungen [3] https://www.hamburger-abendblatt.de/verkehr/s-bahn-4-ausbau-verzogerung-droht-1.6944976 [4] https://www.hamburg.de/verkehr/s-bahn-4-ausbau/ [5] https://www.hamburg.de/verkehr/s-bahn-4-ausbau/ [6] https://www.schleswig-holstein-tagesspiegel.de/lokales/kiel/bauvorbereitungen-fuer-s-bahn-4-ost-vor-der-erneuerung-der-strecke-zur-erneuerung-der-strecke-zur-erneuerung-der-strecke-100.html [7] https://www.hamburg.de/verkehr/s-bahn-4-ausbau/
- Vocational training initiatives in EC countries could benefit from collaborations with the automotive industry, given the demand for skilled workers in vehicle manufacturing and service.
- In some European countries, finance ministries are increasingly investing in public-transit systems, recognizing the importance of fluid transportation infrastructure for economic growth and sustainability.
- With the increasing demand for vocational training in the transportation sector, focusing on vocational training in areas like traffic management and maintenance of vehicles, trains, and transit systems can ensure a robust workforce in the future.
