modern roads -- if they are built to-spec -- are significantly more robust than roman roads in every way. roman roads are not be able to support the speed and weight capacity of modern traffic. this is civil engineering 101, and i encourage you to look into this. unlike military technology that is very often classified and mis-represented by the people who build them (or video game developers), civil engineers have to care very very deeply about this stuff and you can easily find many hundreds of papers of in-practice studies and research on road construction. this is not secret information.
United States