The current state of the practice of measures used to improve traffic safety at intersections on rural expressways is described. The description is based on the results of a recent survey of 49 state highway departments. In general, highway departments use their access control policy and a variety of safety improvement measures at locations with poor safety records to minimize accident potential. The access control policy typically specifies the justification for and frequency of access openings and median openings. Most states indicated that one access opening is provided per abutting parcel that cannot be served by other means. In contrast, median openings are typically provided only at intersections of the expressway and other public roads. Safety improvement measures identified by the survey respondents were categorized as either traffic control measures or geometric design measures. Seventy-four percent of the states indicated that they consider traffic signal control and flashing beacons for application at high-accident locations. Thirty percent of the states consider turn lane additions or modifications at high-accident locations. One modification of expressway left-turn lane design that appears to have particular merit is the offset left-turn bay. In this design, opposing left-turn bays on the expressway are laterally offset such that stopped vehicles in the bay do not block the sight lines of opposing left-turn vehicles.