Maintaining the highway from airport chowk towards Islamabad is a no brainer. With VVIP traffic the road has to be kept as spic and span as possible.
From airport chowk to Rawat who really cares? IF nothing else, one would have though by now they would have put up street lights on such a busy and dangerous road at night but that hasnt really happened yet.
Since this portion of the road is beyond CDA's interest and there are no CDA sectors whose development could be impacted by the road connection there has never been any major push to improve the road. Malik Riaz cant even get the Isb highway to Bahria Town access road rebuilt, let alone bare pressure to improve the highway.
One would have thought that with the development of DHA there would be some pressure from the army to improve the highway but that doesn't seem to have made an impact either. Doesnt seem to have had an impact either.
It doesnt help either that BT, DHA etc are seen as PTI strongholds and MR has been on the wrong side of Chaudhry Nisar. But if they were to deliver a shinny 5 lane highway which helps people zoom into Isb proper from BT/DHA they may just gain some popularity in the area. People who will benefit from rising property prices would be keen as well.
In the long run, the development and maintenance of this part of the highway can only be achieved if CDA has some vested interest in this part of Islamabad, which they presently dont. Otherwise, this will remain a project pushed by the federal government and if the government changes Phase 3 can easily be shelved or the project reduced to some recarpeting.