Ramps consist of three components: two terminal ends and a connecting roadway. The terminals can be designed as high-speed transitions between higher-function roadways or as at-grade intersections. At-grade terminal designs may be applicable at both ends of a ramp. Decisions regarding the appropriate type of terminal design are affected by the functional classification of the intersecting roadways. When an at-grade intersection is chosen as the ramp terminal design, all related controls and criteria should be based on the information presented in Chapter IX of the 1990 AASHTO geometric design policy. Operationally, when an at-grade intersection is used as the terminal, the traffic capacity analyses should be based on the intersection capacity procedures outlined in the 1985 Highway Capacity Manual. It is suggested that AASHTO geometric design policy emphasize the appropriateness of at-grade intersections as ramp terminals. The use of functional classification and the high-speed and low-speed design criteria for at-grade ramp terminal designs is illustrated and clarified.