Intersection angle of reverse curve

[cnickels13]

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?

 

[dik]

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

 

[TerryScan]

You mention this is a study problem. Please note:

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[dik]

Did you try the CAD solution?

Dik

 

[chicopee]

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

 

[LeeGreen]

Either this is a simple/trick question or we need more information.

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