Approach taper. An approach taper directs through traffic to the right. Approach
taper lengths are calculated using Eq. (2.5) or (2.6).
Departure taper. The departure taper directs through traffic to the left. Its length
should not be less than that calculated using the approach taper equations.
Normally, however, the departure taper begins opposite the beginning of the full-width
turn lane and continues to a point opposite the beginning of the approach taper.
Diverging taper. The diverging taper is the taper used at the beginning of the turn
lane. The recommended length of a diverging taper is 50 ft (15 m).