Train chaos in the Cologne area: route closure between Siegen and Troisdorf!
Route closure on the RE9 between Siegen and Cologne: train traffic affected, replacement service set up. Current information here.

Train chaos in the Cologne area: route closure between Siegen and Troisdorf!
A closure on the train route between Siegen and Cologne is causing quite a stir in the greater Cologne area. The official notifications confirm that the RE9 regional express line is affected due to irregularities in construction work. It remains unclear at the moment whether and when the lockdown will be lifted the Siegen newspaper reports.
The impact is enormous: travelers have to expect delays, partial cancellations and even complete cancellations on the entire route. This also points to WDR there. In order to defuse the situation a little, a replacement bus service (SEV) has been set up that runs between Hennef (Sieg) and Troisdorf. There are also two more buses from Dominguez Reisen and three buses from Wabo Reisen, which run between Cologne Central Station and Troisdorf.
Uncertain waiting times
Exact waiting times for trains are not specified, which can be frustrating for commuters and travelers. Short-term changes to the train route are also possible, which doesn't make things any easier. This type of irregularity is nothing new in the rail world, but the current situation highlights once again how dependent passengers are on stable connections.
It is advisable for everyone affected to regularly inform themselves about the current situation. The platform bahn.de provides up-to-date information on traffic disruptions and offers useful features such as a disruption map and real-time train positions. A delay alarm that automatically notifies you via email or app can also be helpful.
Conclusion
In the meantime, it helps to have a little patience when traveling in the Cologne area. Whether you're waiting for the next bus or making changes, you should always keep an overview and use the information channels provided. We can only hope that the construction work will be completed soon and that rail travel will run more smoothly again.