I feel that some interstates between certain cities really need 3 lanes in both directions for the entire distance. Between Memphis and Nashville desperately needs this. Between Memphis and Little Rock and OKCity also. Heck, if I could do it, it would be that way coast to coast on I-40 and I-10. Plus, the Federal Interstate Highway standards need to add a whole foot in width for every lane. Currently, just too tight with how big the big rigs are. Adding width to all road lanes would reduce accidents tremendously.