The Second Life Railroad has its origins in early attempts by residents to provided automated travel around the mainland during a time when their were no direct teleports available. Some of the earliest examples - such as the "Telehopper" from Kissling and the Great Second Life Railway from Mocha to Purple - led to the first Linden-created trolley, operating from Luna to Dore via Nova Albion. As the first mainland expanded and Magellan Linden made additional discoveries beyond the founding of Nova Albion, roadways and other Protected Land Rights of Way (ROW) were crafted on the first continent, Sansara, but none were slated for rail use.With the discovery of the second Second Life continent by Magellan Linden in early 2005, the Grid saw its large-scale, Linden sponsored rail line for on the Heterocera Atoll, the Second Life Railroad (SLRR). Read more about the History of the SLRR.
SLRR ) runs over more then 80 sims on the Heterocera Atoll (Northern)Continent. Anyone with rolling stock designed to run on the SLRR tracks can use this public facility. Along the railway line there are many stations where you can rez a train to start a journey.
The track-building and maintenance on the public Linden Land is provided by the Linden
Maintenance group (usually Michael Linden, currently) and the Linden
Department of Public works LDPW.
Some SL residents have expressed an interest in operating trains on the SLRR and other railroads, much as anyone can operate a car on the roads in SL. The SLRR standards as they are at the moment for guidance and track will enable residents develop suitable vehicles. Other rail networks may use different standards and are encouraged to make their standards public if these networks allow the public use them with their own rolling stock.
The SLRR is made up of specific prim sizes and names. The standards are taken from in-world measurements and put on the Second Life wikipages.