I am opposed to extending the runways and cutting into boating space: I do not believe that the business opportunities presented by airport expansion should eclipse recreational uses. The two are not particularly compatible, and as we have one downtown waterfront, but more than one airport, then I think that this one's size needs to be capped to allow the single waterfront to thrive.
Extending the runways to expand the usefulness of the airport means far more pressure on the local infrastructure than just more landfill, however. It means both a higher transportation capacity will be needed on area roads, quite likely a storage structure for private vehicles, and increased transit capacity. It means longer busy times at the airport as the longer flights made possible by jet travel mean new arrival and departure slots at previously quieter hours. It also means more airlines will demand access to the airport: it's not Porter's airport alone, and there won't be a successful case made to stop competition from coming in once the infrastructure is there (and there shouldn't be, as there's no way in hell that Porter will be paying for the new infrastructure on their own anyway). Expanded runways are the thin edge of the wedge that would turn Billy Bishop into something much busier than it is now.
None of this is conducive to improving the living conditions of those nearby, and in fact the opposite is true. None of it improves the recreational opportunities and uses of the waterfront, instead it detracts from them. This is the 21st century, and we have a better idea of where to build certain things and where not to. We have a major airport capable of handling jet flights, connected to the downtown by a rapid train. More than good enough.
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