The geometry of a roadway, including curves and grades, significantly influences the selection of pavement surface treatments due to its impact on vehicle speed, braking forces, and stress distribution. Curves require vehicles to exert lateral forces, increasing stress on the pavement surface, particularly on the outside edge of the curve. High-friction surface treatments, such as chip seals with high-quality aggregates or microsurfacing, are often used on curves to improve skid resistance and reduce the risk of accidents. Grades, or inclines, affect vehicle speed and braking. Uphill grades cause vehicles to slow do....
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