Some maps like Acropolis Bay and Via Augusta have roads or paths drawn into them, but so far they have no real effect on the gameplay. In order for the artist's work to not go to waste, I propose adding a road feature to maps, where units walking on roads receive a certain amount of speed bonus, say, 10%, compared to off-road units. The justification being walking through rough grassland or forests is much slower than on paved roads, as you have to actively dodge plants, rocks, uneven terrain et