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.

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.
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.
Tenders are invited for Improvements to dangerous vertical curve & vision from km 98.70 to 99.20 of subramanya udupi sh37 in karkala taluk.
A crest vertical curve is located midspan with horizontal curves at each end of the bridge.
situational situation - the bridge is straight, level falls into a concave vertical curve with a radius of 1500 m in the arc, a longitudinal slope of 5% in the beaded section and a two-sided slope of 1.5%.
Tenders are invited for the scope of this intersection improvement project is to flatten the existing crest vertical curve thru and to the north of the intersection, cut and extend back the hill to the northeast quadrant, reset some of the existing southwest quadrant guardrail and end treatment to taper it back from the intersection, and adjust east and west approaches accordingly to improve intersection sight distance and mainline stopping sight distance.
Tenders are invited for Improvment to Vertical Curve at Km 8/800 on Talegaon Chakan Road (SH-55)