Bipassana

I'd be really grateful if you guys help me out. Sorry mate, I mistyped. Its 500 m only. So i am planning to have around 50-60 IR cameras. But I have no idea what type of camera shall I use as wired option will be messy and troublesome while the wireless option is expensive. Can you plz suggest me the best option?

Hi I am new to this forum. I've already installed CCTV for small homes and have used 5-6 wireless cameras using 8 channel DVR. But now I've got a big project. I need a CCTV surveillance solution for the busiest part of my city. The surveillance system should cover around 500 km and should cover the whole area regardless of how many cameras are needed. Since it is the busiest part of a city, we have problem with wiring as it gets messy. So can anyone suggest me the ideal surveillance solution for the area which is economic and cover all area with less trouble with wiring? What kind of camera should i use? I'd be really grateful if you guys help me out.