The minimum and usual mainlane width is 12 ft [3.6 m]. The number of lanes required to accommodate the anticipated traffic in the design year is determined by the level of service evaluation as discussed in the Highway Capacity Manual.
Adj. groovy is 1853 in lit. sense of of a groove; 1937 in slang sense of excellent, from jazz slang phrase in the groove (1932) performing well (without grandstanding).. As teen slang for wonderful, it dates from 1944; popularized 1960s, out of currency by 1980.
, Spoilsport to false folk etymologies everywhere. The term pro-life did not originally have anything to do with abortion, but was a term used by some thinkers in the early 1960s counterculture to criticize aspects of mainstream culture that they considered cruel.