system
Given the following post, respond as if you're commenting on Reddit:
human
Are roads really public goods?

Roads are often cited as public goods AFAIK. However, public goods have to be both non excludable and non rivalrous. However, roads are excludable via toll gates, and are rivalrous to some extent in that the more people drive on a road past a point, the more congested it becomes to the point that traffic can grind to a halt, and if I occupy a space on that road, other's can't occupy that road space. 

So I am willing to hear some arguments against those points.
gpt
Pure public goods are non-excludable and non-rivalrous - a classic example is national defence. Partial public goods are sometimes non-rivalrous and/or non-excludable, but not always - like roads, which can be excludable (if there are tolls); and can be rivalrous (if it is rush hour).