Impact of newer larger aircraft on airport management

Questions that should answer but are not limited to include:
What are the effects on airports design and the frequency of airport pavement replacement and repairs?
What are the effects on taxiway and apron separations?
What are the effects on gate capacity and baggage handling operations?
What are the effects on aircraft servicing operations?
Please identify the problem/situation, provide a resolution/approach, give a rationale to your approach and expected outcome/conclusion.
Minimum of 3-5 references.