Bulb Outs:

Bulb-outs are installed at intersections to narrow the street by widening the sidewalk or the landscaped parking strip at the curb.

Chokers:

Chokers are installed mid-block to narrow the street by widening the sidewalk or the landscaped parking strip at the curb.

Pedestrian Islands:

Pedestrian islands are small islands in the middle of the street which narrow vehicle travel lanes, provide a visual narrowing of the roadway, and give pedestrians a refuge when crossing the street. They can be installed mid-block or at intersections, hardscaped or landscaped. See details here.

Entry Islands:

Entry islands are small islands in the middle of the street that narrow vehicle travel lanes. They are installed at the entrance to a street.

For details go here.

Slow Points:

Slow points are small islands in the middle of the street that serve to narrow vehicle travel lanes and provide a visual narrowing of the roadway. They are installed mid-block and can be landscaped.