Corridor with perpendicular curb

Hi all,

I am making a corridor for a road with parking, sidewalk.

However, i get stuck in the position without parking lot, the curbs turn with 90 degree.

I tried making a Point control horizontal alignment, however, it goes wrong.

How can we keep it follow correctly at those positions?

I am not really proficient in ORD, so i welcome sharing from you all.

Openroads designer 10.09.00.91