vertical curve


Also found in: Acronyms.

vertical curve

[′vərd·ə·kəl ′kərv]
(civil engineering)
A curve inserted between two lengths of a road or railway which are at different slopes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

vertical curve

A smooth parabolic curve in the vertical plane used to connect two grades of different slope to avoid an abrupt transition in passing from one to the other.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
For the third group (i.e., horizontal curves on a crest vertical curve), the difference is significant for both (2D-3D) pairs.
Also the radius of the vertical curve (R = 20000 m) influences just 1.78% of the total temperature force compared to the slab without the vertical curve (R = [infinity]).
* Vertical alignment: intersection on crest vertical curve, crest or sag vertical curve on intersection approach, steep grade through intersection, and continuity of minor-road profile through intersection
Leisch [30] found that an increase in vertical grade or length of vertical curve had much significant influence on truck speed than car speed.
The final alignment selected for the directional drill project required the construction of a double horizontal curve (double side bend) in addition to the normal vertical curve to provide the required depth under the waterway.
A crest vertical curve is located midspan with horizontal curves at each end of the bridge.