Multilane highways generally have f

Multilane highways generally have four to six lanes (in both directions) and posted speed limits between 40 and 55 mi/h. In some states, speed limits of 60 or 65 mi/h are used on some multilane highways. These highways may be divided by one of various median types, may be undivided (with only a centerline separating the directions of flow), or may have a two‐way left‐turn lane (TWLTL). They are typically located in suburban areas, leading into central cities, or along high‐volume rural corridors, connecting two cities or two activity centers that generate a substantial number of daily trips. Exhibit 14‐1 illustrates common types of multilane highways.