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.
However in 19th century America the term was more loving ascribed to folks who loved baseball : â1889, Amer.Eng., originally of baseball enthusiasts, probably a shortening of fanatic, but may be influenced by the Fancy (1807), a collective term for followers of a certain hobby or sport (especially boxing). There is an isolated use from 1682, but the modern word is likely a new formation.â.