Regular voting is usually what affects things such as the transportation infrastructure in your country or city. It’s a slow proceed though.

Here in Oslo there has been a lot of investment in bike lanes, but just because one part of the local government builds more bike lanes doesn’t mean that other parts of the government will follow suit. Police still doesn’t care about cars illegally blocking the bike lanes. The people ploughing snow see bike lanes as the last thing that should need ploughing, preferably no earlier than 2 weeks after it snowed. A dedicated bike path I use to work is supposed to be ploughed within 2 hours of snow, but it took a week before anything was done and now three weeks later it’s still not to the standard that the government has set.