Create a non-tangential curve using a radius point and point at the end of the curve.
XC PTS [radius] [radius point] [end point]
NE 1 1000 1000
NE 2 1000 1200
NE 3 1084.8528 1284.8528
NE 6 985.8579 1298.9949
BEG ROADCL
PT 1
PT 2
XC PTS 100 6 3
FIG DD 0 100
SET 4
XC AD 100 45 150
SET 5
END
The following illustrates two non-tangential curves: