Bike box

Designated area at an intersection between the stop line and crosswalk where cyclists can queue in front of traffic while the light is red. This allows cyclists to establish their position in the lane and to avoid Right hooks from drivers. The bike box is sometimes painted green and may have a special sensor in the pavement allowing the cyclist to trigger the light.

A bike box can also refer to a storage container used for transporting bicycles.

Reference
The box refers to the shape of the rectangular area.

Forum Introduction

 * Veitch Street Bike Lane Extravaganzapalooza http://bikearlingtonforum.com/showthread.php?p=57599#post57599

Links

 * "Bike Boxes" - National Association of City Transportation Officials http://nacto.org/publication/urban-bikeway-design-guide/intersection-treatments/bike-boxes/
 * "Veitch Street bike box painted green" - BeyondDC http://beyonddc.com/log/?p=6029