I would not be surprised if, 20 years from now, not one centimeter of tarmac is laid for any solution, as the dither/discuss/debate cycle shows no signs of stopping, and any solution that does emerge will be likely be similarly stalled in heaps of legal challenges, studies, court battles, etc. by those "affected".

Similarly, there remains the ongoing & abysmal absence of "testicular resources" among those charged with taking the tough decisions.