FS2004 Roads And Railroad Replacement Textures. With this you now have options for your interstate (divided 4-lane) and state roads (single 2-lane). You can choose a dark or a light pavement color and also four levels of auto traffic density. The 'traffic' is only bits of color to suggest the presence of traffic, the roads are 8-bit color bmps and they are 'sliced' into pieces and layed out end to end by the sim. By Vance Roberts.