NEWS FLASH
Belgrade Nikola Tesla Airport has commenced the second phase of construction of its inserted runway with asphalting work launched late last week. The new runway is 3.500 metres in length. It will replace the existing one, which will be reconstructed. The inserted runway will remain in use as a parallel taxiway besides the existing one once the latter’s overhaul is completed. They will be linked through a new system of taxiways, including four rapid exit taxiways (RETs). The inserted runway will also be used in the future, should the main one be incapacitated to handle aircraft for whatever reason. The overhaul of the existing main runway will commence upon the completion of the inserted runway. Belgrade Airport’s existing runway was built in 1962. It was extended by an additional 400 metres to 3.400 metres in 1978. It has been determined that the runway’s weight bearing capacity is no longer sufficient.

Comments
What you will have now it two runways too close to each other so that they cannot be used at the same time if necessary.
The question is where is the BEST place to build a second runway. What is best for the long term development of the airport. How best to accommodate future demand etc. Not where is the most convenient and easiest place to build it.
So take a chill pill Mr. djoki and learn something.
http://4.bp.blogspot.com/-EwrzXyUVbz8/VQUzbPfixUI/AAAAAAAAQPM/xMmWbaU9y54/s1600/beg2025.jpg
That's how second runway was planned since 1962 until 2014-2015.
Posting a comment that inserted or separate runway is not needed now that paving is happening is pathetic. That discussion was taking place 6-7 years ago. If you don't realize now is way too late to chime in with your opinion you should seek help to get acquainted with reality surrounding you.
Vinci said that it may reach 15 million in 10 years similar to what BUD used to do before Corona
If they built the second runway on the opposite side of the airport as planned, then two planes could land/take off at the same time. The cost would not be significantly more.
With this inserted runway you cannot have two planes taking off/landing at the same time as it is to close to the old runway. Not saying that this will be necessary now, but in the future it would be nice to know that you could do that.
And I realize that the inserted runway is a fait accompli, but it is the wrong decision.
Try to concentrate and comprehend the issues be discussed.
But glad you agree with me that the inserted runway was a mistake. Not the idea of a second runway, just the location.
This inset will NOT be a runway in the long run, it will be a taxiway! Moreover, it will have rapid exit taxiways (you can google what that means) which will decrease runway occupancy times significantly, and increase the number of operations per hour.
This inset WILL serve as a runway in the interim, meaning once its construction is complete the main runway can and will undergo full renovation (because the taxiway will temporarily be used as the main runway), and once that's done, the inset will go back to serving its primary purpose - which is to be a taxi way accessible also by rapid exits.
On the other hand, discussion we had back in 2015 was about benefits of non-inserted, separate runway over this inserted one. It would have been more expensive but would allow way more flexibility. For example, even now during pandemic, Aegean planes had to wait today on taxiway for 10-15 minutes for departure. Not tragic, but imagine how it will look like in 10-20 years. Inserted runway won't be able to help with congestion.
1. What is the price of this 'inserted' runway?
2. What will be the price of new separate runway?
Now, those occurrences you've mentioned happen once in a blue moon. A parallel runway costs a lot of money to build, and not to mention - to maintain! The current runway has an ILS CATIIIB approach capability, and keeping that thing online isn't cheap, much less for 2 runways simultaneously. If you're gonna build a second runway without all weather operations capability, then don't bother building it.
So long story short, a rapid exit taxiway (which is what is being built) will allow a higher throughflow of traffic at a substantially lower price. The benefits are there, and a second runway (if needed) can always be built later on when the cost/benefit factors seem reasonable.
For now, it would just be a "safety net" that costs a lot of money. Worst case scenario, if any of those incidents or accidents ever happen again, you have two nearby airports where aircraft can divert, and passengers can be shuttled by bus. It's not Greenland or Antarctica.
Cost/benefit factors for a separate second runway will never seem reasonable. Apparently land cost on the other side of the airport is prohibitive. Space for a brand new airport further away is dedicated under a new 2035 land plan.
Dude, I don't know if you're the same anon, and I don't know if you're replying to me or the other guy. I'll just say this again - exactly because the runway needs a lot of time to be renovated, the taxiway they're building (which is being called an "inserted runway" for some funky reason) will be strong enough and wide enough to be used as a substitute during that 12-18 month period while the main is being renovated. The incidents that were mentioned before (the ones that would warrant a closure of the runway in use on a given day) happen so rarely, that for that one single day in 1000 days of operation, an airplane can land in Kraljevo or Ponikve, or even Nis, and have the passengers shuttled by bus as a one in a million event. It's still cheaper than building and maintaining a parallel runway.