Research Questions

How is the effectiveness of passenger-driven initiatives is measured in air transport as there are no ‘passenger-centric’ metrics?, How are we going to understand the associated trade-offs in the context of delay propagation?

Research Scope

The POEM (Passenger-Oriented Enhanced Metrics) project has built the first full European network simulation model with explicit passenger itineraries and delay cost estimations. At the core of the project was the design of insightful, new air transport performance metrics, and their evaluation under novel flight and passenger prioritisation scenarios. Using these modelled scenarios, the key objectives were to explore the trade-offs between the (new) flight-centric and passenger-centric metrics and to characterise the propagation of delay through the network. The model is capable of assessing new policy and regulation impacts in addition to future flight prioritisation rules, in terms of numerous performance metrics, including delay costs.

Research Results

POEM concluded that simple flight prioritisation rules, e.g. based on passenger numbers, were ineffective; that policy-driven rules only made an impact when current airline constraints were relaxed; that airline cost minimisation rules resulted in win-win outcomes. Furthermore, that passenger-centric metrics are needed to see the full impacts of operational change and that reactionary (knock-on) delay in the network accounts for almost half of all delays in Europe – these effects have been better characterised by the POEM analyses.