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In geodesy, conversion among different geographic coordinate systems is made necessary by the different geographic coordinate systems in use across the world and over time. Coordinate conversion is composed of a number of different types of conversion: format change of geographic coordinates, conversion of coordinate systems, or transformation ...
≡ Time of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at 0 K [8] (but other seconds are sometimes used in astronomy). Also that time it takes for light to travel a distance of 299 792 458 metres. (SI base unit) shake: ≡ 10 −8 s = 10 ns ...
Glenelg Highway commences at the intersection with Princes Highway in Glenburnie, South Australia and heads on a north-easterly direction as a two-lane, single carriageway rural highway, crossing the interstate border into Victoria 15km later (some maps identify the South Australian section as Casterton Road), continuing northeast to Casterton, then heading in an easterly direction through the ...
Like National Routes, South Australia's National Highways were also replaced with the alphanumeric system, introduced across the state in 1998: each route was converted to an alphanumeric route number, all keeping their number during the conversion, but also initially keeping the National green-and-gold shield design; this was eventually ...
Scale at an angular distance of 5° (in longitude) away from the central meridian is less than 0.4% greater than scale at the central meridian, and is about 1.54% at an angular distance of 10°. In the secant version the scale is reduced on the equator and it is true on two lines parallel to the projected equator (and corresponding to two ...
–New South Wales; B-double truck on Sturt Highway: Coordinates (West end); (East end); General information; Type: Highway: Length: 947 km (588 mi) [1]: Gazetted: August 1928 (NSW, as Main Road 58) [2] August 1933 (NSW, as State Highway 14) [3] July 1938 (SA) [4] 1939 (VIC) [5]: Route number(s): A20 (2013/2017–present): Former route number: National Highway A20 (1997/1998–2013/2017 ...
Since 1955, South Australia had major rural roads numbered as part of national routes and Highways. In 1998/1999 South Australia introduced "Trailblazers" with A, B and M route numbers in the Metropolitan area and tourist areas of Victor Harbor and the Barossa Valley. [1] [2] This system was extended to cover country uouverreas starting in 1999 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 20 December 2024. Directionality of traffic flow by jurisdiction Countries by direction of road traffic, c. 2020 ⇅ Left-hand traffic ⇵ Right-hand traffic No data Left-hand traffic (LHT) and right-hand traffic (RHT) are the practices, in bidirectional traffic, of keeping to the left side and to the ...