As a reminder, the “donut” prevention pilot is a plastic raised curb, similar to the photo below, known as left turn hardening or a hardened centerline treatment.  DOT will implement the hardened centerline at the east and west legs of Orange Grove Boulevard only since the treatment on those legs will not affect through traffic movement for the cross street (Lincon Ave). Hardened centerlines are usually implemented as a pedestrian safety measure for the purpose of reducing the turning speed of left-turning motorists and improving their approach angle.

If the treatment proves successful in curbing the behavior, it could be expanded to other selected intersections throughout the City.