- European CDM -

1. - European CDM - Slot Swapping To benefit from the animation settings contained within this presentation we suggest you view using the slide show option. To start the show click ‘View - Slide Show’. next page

2. - European CDM - Slot Swapping Slot Swapping is proposed as an enhancement to increase the flexibility of the current European Air Traffic Flow Management system, allowing airlines greater control over the operation of their flights in the congested core area of Europe. next step The following pages illustrate the ideas behind Slot Swapping and the proposed process ... Collaborative Decision Making www.euro-cdm.org Visit the European CDM website at for more information next page

3. Introduction The aim of Slot Swapping is to give Airlines the flexibility to prioritise their most critical flights, amongst a number of their flights going through the same congested area (CFMU Regulation). This prioritisation would be achieved by swapping the CFMU slots of two flights. next step A flight’s CFMU slot time is determined by its Most Penalising Regulation (that is, essentially, the most congested area through which it passes; the CFMU Regulation that gives it the greatest delay). Therefore the flights to be swapped must have the same Most Penalising Regulation. next step Provided that the swap does not adversely affect other traffic by overloading other areas of airspace, slots could be swapped between any two flights passing through the same Most Penalising Regulation. The flights do not need to be departing from the same airport. next step So how would Slot Swapping be achieved? … next page

4. Roles The airline understands its own operational needs and priorities better than anyone else. Therefore the Airline Operations Centre (AOC) will be responsible for deciding which slots it wishes to swap, and requesting this swap. next step Only the CFMU has the full picture regarding the available capacity and expected loading of the European airspace network. Therefore the CFMU will be responsible for checking the effects of the proposed swap. next step The next slide illustrates the proposed process for Slot Swapping, and the information exchanges that will take place. next page

5. CFMU AOC AOC AOC AOC ATC Tower for flight 1 ATC Tower for flight 2 The proposed Slot Swapping process First of all, AOCs need access to Slot tables to assess which slot swaps might be possible to achieve the prioritisation they require. This is already available through the “CFMU terminal” (RTA or RCA). Slot swap request next step Slot tables Assess priorities and options for prioritisation Check feasibility of slot swap request Swap Approved, new CTOTs or Swap Rejected …and if Swap Approved... New CTOTs next step The next 3 slides present 3 scenarios that look in more detail at slot swaps, and the factors that would determine whether or not a proposed Slot Swap is feasible. This shows the checks that CFMU would have to make before Approving or Rejecting a Slot Swap Request. next page

6. JJK123 Q MPR Q JJK456 Scenario 1 JJK456 is a time-critical flight. This could be because of hub operations, airport curfew, crew hours restrictions or many other reasons. A slot swap is requested by the AOC to advance the slot time at MPR of JJK456 by 30 minutes, to take the slot of the less-criticalJJK123. next step Since both flights are subject to only one regulation (the same one), the slot swap will not affect any other regulations and should be possible. next step Flight ID ETO Slot Time ABC334 09:32 09:50 LMN945 09:36 09:55 JJK123 09:40 10:00 PPL078 09:42 10:05 KDF223 09:43 10:10 RWA298 09:45 10:15 ABC556 09:47 10:20 KDF890 09:48 10:25 JJK456 09:50 10:30 HHJ648 09:51 10:35 YYK359 09:55 10:40 BAH222 10:00 10:45 JJK456 09:50 10:00 next step JJK123 09:40 10:30 It is possible that another area, one that is not currently regulated, could become overloaded as a result of swapping the slots of a number of flights – for example, making several flights on the route of JJK456 earlier while several flights on the route ofJJK123 go later. However, this is unlikely if the number of swaps is small compared with the total volume of traffic. next page

7. Scenario 2 In this second scenario, the time-critical flight JJK456 is subject only to the shared regulation, while JJK123 passes through a second regulation, Reg2, 20 minutes flying time from the shared MPR. next step Before the swap, JJK123 was forced through Reg2 at 10:20 (to accommodate its slot time at MPR of 10:00). The proposed slot swap would mean that it needed to be forced through Reg2 30minlater at 10:50. In general, it is likely to be possible to force a flight through at a later time without causing overloading at Reg2 – other flights may be advanced to compensate (although not flights that are forced in that regulation) so that those flights’ airlines also benefit from the process. next step MPR slot Sequence Reg2 slot Sequence JJK123 Flight ID ETO Slot Time Flight ID ETO Slot Time KKL012 10:00 10:10 MPR LMN945 09:56 10:15 forced JJK123 10:00 10:20 forced MDF342 10:05 10:25 MPR KKL034 10:20 10:30 MPR RWA298 10:05 10:35 forced ANO112 10:26 10:40 MPR KDF890 10:08 10:45 forced LMN310 10:35 10:50 MPR ABC988 10:40 10:55 MPR LHA333 10:43 11:00 MPR Q ABC334 09:32 09:50 LMN945 09:36 09:55 JJK123 09:40 10:00 PPL078 09:42 10:05 KDF223 09:43 10:10 RWA298 09:45 10:15 ABC556 09:47 10:20 KDF890 09:48 10:25 JJK456 09:50 10:30 HHJ648 09:51 10:35 YYK359 09:55 10:40 BAH222 10:00 10:45 MDF342 10:05 10:20 MPR JJK456 09:50 10:00 MPR KKL034 10:20 10:25 MPR Q JJK456 ANO112 10:26 10:30 MPR LMN310 10:35 10:40 MPR Reg2 JJK123 10:00 10:50 forced JJK123 09:40 10:30 next page

8. Scenario 3 In this third scenario, JJK123 is subject only to the shared regulation, while JJK456 passes through a second regulation, Reg3, 20 minutes flying time from the shared MPR. next step Before the swap, JJK456 was forced through Reg3 at 10:50. The proposed swap would mean that it needed to be forced through 30minearlier, at 10:20. In general, it is unlikely to be possible to force a flight through at an earlier time without causing overload, sinceother flights may not be delayed. For this reason, this swap is more likely to be refused than those in scenarios 1 and 2. next step However, this swap may still be possible. If demand for Reg3 is building, there may be a freeslot earlier which can be taken by JJK456. In that case the slot swap will actually reduce congestion at Reg3 at its busiest time, and other airlinesbenefit because their flights are advanced. next step next step JJK123 MPR slot Sequence Reg3 slot Sequence Flight ID ETO Slot Time Flight ID ETO Slot Time ABC334 09:32 09:50 LMN945 09:36 09:55 JJK123 09:40 10:00 PPL078 09:42 10:05 KDF223 09:43 10:10 RWA298 09:45 10:15 ABC556 09:47 10:20 KDF890 09:48 10:25 JJK456 09:50 10:30 HHJ648 09:51 10:35 YYK359 09:55 10:40 BAH222 10:00 10:45 ABC334 09:52 10:10 forced YYK558 10:15 10:15 MPR HHJ030 10:18 10:20 MPR PPL078 10:02 10:25 forced KDF223 10:03 10:30 forced TLR779 10:30 10:35 MPR ABC556 10:07 10:40 forced DLS246 10:38 10:45 MPR JJK456 10:10 10:50 forced HHJ648 10:11 10:55 forced PPL922 10:45 11:00 MPR DEF125 10:47 11:05 MPR Q JJK456 09:50 10:00 JJK456 10:10 10:20 forced 10:20 Reg3 Q JJK456 MPR JJK123 09:40 10:30 10:50 PPL922 10:45 10:50 MPR 11:00 DEF125 10:47 11:00 MPR 11:05 All slots in Reg3 are allocated ! next step next step next page

9. Conclusion This presentation has illustrated the principles of Slot Swapping and how it can improve the efficiency of airline operators by allowing them to prioritise critical flights. The three scenarios have illustrated the checking that needs to be done byCFMU in response to a Slot Swap request. They have shown the effect of other regulations (apart from the Most Penalising Regulation), thus highlighting that Flow Management in Europe isa network problem. next step • The scenarios have shown: • why no particular swap can be assumed to be acceptable without checking its effect, • why, in spite of that, slot swapping on the whole is likely to be feasible. next step Detailed rules and procedures have yet to be worked out, and will need to be agreed by all participants to ensure the process is effective and to ensure equal access and benefits. For example, the scenarios showed slot-swapping between flights of the same airline, but note that slot swaps could be negotiated between AOCs. - End of Presentation -