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# Intersection angle of reverse curve

## Intersection angle of reverse curve

(OP)
This may be novice to some. I have a study problem that involves a reverse curve. Basically one curve leading into a second curve, and it lists the radius of each curve. The problem asks what the angle is at PRC (point of reverse curve). How do I find that angle?

### RE: Intersection angle of reverse curve

I think it depends on where your centers are located. Can you do a quick CAD drawing using the information you have and measure the location and respective angles?

Dik

### RE: Intersection angle of reverse curve

You mention this is a study problem. Please note:

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### RE: Intersection angle of reverse curve

Did you try the CAD solution?

Dik

### RE: Intersection angle of reverse curve

Plotting in ACAD is one way per DIK; another is a reference titled "Route surveys and Design" by Hickerson.

### RE: Intersection angle of reverse curve

The angle at the PRC for all four quadrants is always 90°.

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