Definition of Time: a) a continuous, measurable quantity in which events occur in a sequence proceeding from the past through the present to the future. b) 1: an interval separating two points of this quantity; a duration.
Definition of Distance: a) the degree or amount of separation between two points, lines, surfaces, or objects.
Only LTI's UltraLyte 100 LR laser with DBC and the LTI 20/20 TruCAM®, with the DBC feature added, can determine the time and distance separation between two moving vehicles. This patented software code makes it possible for law enforcement to validate visual determination of one vehicle following too close to another.