The implementation of the long-term vision and plan has been quite an integrated and fairly holistic plan, but it has not addressed things like parking to the same degree as it has addressed buildings or material handling. All of that back-of-house infrastructure that integrates and supports how a campus or integrated space works is critical.
You will note that there is still a fair amount of surface parking on Parliament Hill. The vision over time is to get away from surface parking, to still provide parking for the operations of Parliament, but some kind of parking structure, probably somewhat underground, is envisioned that would allow a significant amount of the paved space to go green and to be replanted with trees, etc.