I think the main reason for that is before PTI there was no competition in politics because PPP and other parties were the worst in the country and people used to look towards PML(N ) and since PTI has come in to politics PML(N) knows that they have a rival only one in this country and big thread for them is only PTI so they are doing there best to compete but they will fail because they think they can make fool out of people by making Metro, roads and bridges but now days and in 2018 elections people will be more educated because of social media and print media , electronic media , they will want clean drinking water, better health system in hospitals , free education for there kids, people will want police to protect them and their properties they will want better law and order, people will want better local goverment system, the list can go on and on and on but this Government only busy doing gimmicks like Metro and Roads, I forgot to mention the biggest crisis country is facing and will be facing in 2018 is power shortage electricity crisis (load shedding)