I love this guy's videos, and he just keeps getting better and better.
This video really give a great view of the amount of engineering and preparation that goes into these,,, um dare I call them "infrastructure projects" that are done proactively to improve the transport routes to the south to support future growth.
Take a look at this on Google Earth to see how big of a project this is, even though it is just a small piece of the whole south coast development.