Wanting to create a company to fix current traffic in my city

I'm properly pissed at current management in my city (it got reelected, so things won't change in the next 4 years). This is my big motivation to finally start enacting on my life work.

But I have no idea to do anything related to a company. I'm currently a railway technician. Never been involved in any management or anything close to that of a company. How does one do this stuff to start anything?

I also have no money for this, this was me tinkering on the side and working out my plan. Just living my life (mainly using the money I have to renovate my house).

But seriously, I'm really interested in this idea. I'm also not interested in giving up my current job. In the beginning I want this to be something on the side.

Anyone to help me in this, is more than welcome to send me a message. I can provide more details, just don't really want to share everything with the internet