Can we hack traffic lights

[Bezz04]

It's a repost! Enjoy reading
Yes you can hack but there are two types of traffic lights which is wired and wireless
We can hack Wireless traffic lights
Actually traffic lights runs on 45 - 60 hrz frequency
Just assume what happen if you jam this frequency
The traffic lights won't work ????
And you can also perform reply attack on traffic lights which can change the traffic lights according to you
Here we got the feel of watchdogs ????
But in wired the process is completely different first you need to hack the system by using some hardwares then you can (its a long process same like hacking one PC and controlling it)
But in many countries traffic lights are wireless (developed countries)
How to find the traffic lights are wireless are not ?
Just go there where the traffic lights
Take your hackrf and sdrsharp search for frequency of 45hrz - 60 hrz
If you can see some radiations and frequency passing changing to high and low then the traffic lights are wireless
Just use for knowledge purpose keep your place safe