A contractor's customers often have to chose between more parking space and the desire for more landscaped area. Or they may have a potential problem of runoff pollution from new parking areas-or worry about erosion control for flood-control channels. The answer for such problems many be a load-bearing pavement that combines the pleasing appearance and softness of grass with the strength of concrete. It looks like a lawn but is a reinforced continuous concrete slab with geometrically spaced cavities for the planting of grass. This new pavement type was introduced into the United States in July 1976 at the American Society of Landscape Architects annual meeting. Previously over 3 million square feet had been placed in the United Kingdom beginning in 1971. Applications there include emergency access roads for high-density apartments and offices, off-road parking for shopping centers, rest areas and median crossovers for highways, and soil stabilization for embankments as well as airport parking areas and trailer parks. Pavement cavities for grass planting are created by the use of polystyrene plastic formers placed on the subgrade upside down. The design of the cavities, which can have a variety of shapes, provides optimum load-carrying capacity for the pavement while preventing root damage to the grass. During construction the formers are set on a well-compacted subgrade with a least a .4- to.8- inch sand leveling course. After the concrete has attained its initial set, it is brushed to expose the tops of the formers. Later the pavement cavities are filled with good quality topsoil which is fertilized and planted with grass seed. Grass mixtures are selected for their wear and drought resistance and color retention.