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Curb
A raised edge or border to a roadway. Curbs may be constructed of concrete, asphalt, or wood and typically have a face height of less than 9 inches (225 mm).
Centerline, Broken
A broken centerline indicates that passing is permitted.
Deployed-Side Air Bag
Air bag on side of motor vehicle is deployed out of its cover and protruding into occupant compartment. Bag is fully or partially deflated or inflated.
Bikeway
Any road, path, or way which is specifically designated as being open to bicycle travel regardless of whether such facilities are designated for the exclusive use of bicycles or are to be shared with other transportation modes.
Hit and Run
Crashes where the vehicle, or the driver of the vehicle, in transport is a contact vehicle in the crash, and departs the scene without stopping to render aid.
Collision
A motor vehicle crash, other than an overturning crash, in which the first harmful event is a collision of a motor vehicle in transport with another motor vehicle, other property, animal or pedestrian.
Air Bag Deployed
Deployment status of an air bag relative to the position in the vehicle for this occupant.
Collision With Object Not Fixed
A motor vehicle in transport strikes a pedestrian, pedalcycle, railway vehicle, animal, motor vehicle in transport, parked motor vehicle, falling, work zone/maintenance equipment, other moveable object or is struck by falling, shifting cargo or anything set in motion by a motor vehicle.
Booster Seat
A "belt-positioning seat" that positions a child on a vehicle seat to improve the fit of the lap and shoulder seat belt system. This seat is recommended for children who weigh 40 pounds or more.
AASHTO
American Association of State Highway and Transportation Officials
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