Increase the radius of a horizontal curve to provide enhanced visibility.

Increase the length of a horizontal curve.

Consider including auxiliary lanes (particularly exclusive right-turn lanes) at locations where motorcycle volume is higher.

Minimize the roadside features (trees, barriers, and other fixed objects) and widen clear zones with particular attention to the outside of the curve.

Widen shoulder widths in a manner consistent with the road purpose (e.g., wider for freeways, narrower for twolane highways). Widen the paved shoulder at curves to allow improved recovery space to avoid roadway departures or MBGF impacts.

Employ human factors research and experimentation with novel motorcycle warning signs with the potential to reduce crashes, in accordance with the provisions of the .

Maintain smooth driving surfaces.

Minimize the use of raised pavement markings at locations with frequent lane changes (additional research is needed for snow plowable pavement markings). Evaluate the use of advance stop lines for motorcycles.