Grades of $\backslash ($ g$\_\{1\}=-2\mathrm{.}50\backslash \%\backslash )$ and $\backslash ($ g$\_\{2\}=+1\mathrm{.}50\backslash \%\backslash ),$ VPI elevation $852\mathrm{.}00$ ft at station $\backslash (22+00\backslash ),$ and a fixed elevation $856\mathrm{.}00$ ft at station $\backslash (20+50\backslash ).$

Part A

Field conditions require a highway curve to pass through a fixed point. Compute a suitable equal$-$tangent vertical curve and full$-$station elevations. Give the elevations in order of increasing $\backslash ($ X $\backslash ).$ Express your answers in feet to five significant figures separated by commas.

Elev $=$

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