Traffic Violation Terms and Definitions

Alcohol/ Involvement Law enforcement suspected, and documented, that at least one driver or non-motorist involved in the crash had used alcohol. Includes both alcohol use under the legal limit and at or over the legal limit. Centerline, Solid and Broken Line A centerline that is both solid and broken indicates that passing is permitted in one direction. Advance Warning Area Located after the first warning sign but before the work area. Commercial Motor Vehicle Any self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property when the vehicle (1) has a gross vehicle weight rating or gross combination weight rating or gross vehicle weight or gross combination weight, of more than 10,000 lbs or 4,536 kg or (2) used for commercial transport of more than 8 passengers (including the driver); or (3) is used for non-commercial transport of more than 15 passengers, including the driver; or (4) is used in transporting material found by the Secretary of Transportation to be hazardous under 49 U.S.C. 5103 and transporting in a quantity requiring placarding under regulations prescribed by the Secretary under 49 CFR, subtitle B, chapter I, subchapter C. Alignment The geometric characteristics or layout of a roadway. Alignment is usually subdivided into horizontal alignment. Includes straight, curve left, curve right. Area(s) of Impact The areas of damage to the motor vehicle caused by the crash. These areas should include the area of the motor vehicle that received the initial impact and the area that was most damaged. Backing A start from a parked or stopped position in the direction of the rear of the motor vehicle. 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. 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. BAC Test Result Blood Alcohol Concentration.

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	Did You Know?
	A driver can be disqualified for one year for a first time conviction of the following offenses while operating a commercial vehicle. Penalties can include: Driving under the influence of alcohol or any drugs; Driving with an alcohol concentration of .04 or more; Leaving the scene of an accident; Using a commercial vehicle in the commission of a felony; or Refusing to take a blood alcohol test. If convicted of any of the above while operating a vehicle placarded for hazardous materials, the disqualification increases to three years.