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Source: GTAA Figure 8-7. Performance metric for preventive maintenance during December 2015. *Jams: Baggage unable to move due to being stuck Source: GTAA Figure 8-8. Performance metric for baggage during December 2015.
54 Guidebook for Considering Life-Cycle Costs in airport asset procurement Source: GTAA Figure 8-9. Performance metric for passenger boarding bridges during December 2015. Source: GTAA Figure 8-10. Performance metric for people-moving devices during December 2015.
Case Studies 55 challenges and opportunities across functions and inspires innovation. Through collaboration, barriers are removed and the success of the TCO implementation airport-wide is assured. One of the procurement challenges that faced the airport before implementing TCO was knowing the market and the services provided by the vendors and the quality of the services they provide. Therefore, TCO was a good approach to deal with these challenges. Specifically, the benefit of TCO as a procurement model is that it puts the vendors on the hot seat for reliability and operating the assets for a period of time along with performance guarantees. In addition, GTAA makes sure the vendors understand the project and deliverables, and that they follow the testing, commissioning, acceptance, and turnover (TCAT) process. The criteria used in the TCO model are the following: ⢠Robust nature of the equipment being selected (experience with that equipment) ⢠Cost of maintenance over time ⢠Initial purchase price ⢠Maintenance and replacement activities The TCO results are used to do the following: ⢠Select vendors ⢠Evaluate vendors and their provided services ⢠Evaluate the assets ⢠Provide financial analysis (cost/benefit) ⢠Develop business case ⢠Drive reliability According to GTAA, the difficulty of TCO is knowing the market; for example, knowing whether the vendor has a service arm and its experience in the Canadian market. The TCO has been successful and very valuable at GTAA; one example is in the area of escalator procurement. The vendor through the TCO process was accountable to deliver on promises, Source: GTAA Figure 8-11. Performance metrics calculations equations.
