SnakeGrid

[edit] What is SnakeGrid?

SnakeGrid (or Snake Grid) is a projected coordinate system designed for large scale linear engineering and mapping projects. In this context, meaning large scale, linear engineering and mapping projects, those that extent in a linear (or corridor) configuration over long distances, for example, railways and highways (or motorways).

[edit] History

The original name of SnakeGrid was RailGrid. However, the name was changed as it is based on the Snake Projection. And, in reality, it can have applications beyond rail projects.

• RailGrid v1 - an internal prototype which was never formally released outside UCL.
• RailGrid v2 - the first version publicly available for use.
• RailGrid v3 - the v3 application allowed for an input of a parameter file that is used to define a different type of SnakeGrid coordinate system.
• SnakeGrid v4.0.1 - a significant re-development of the algorithms to incorporate several new features.
• SnakeGrid v4.0.2 - this version was used on all snake grids developed after April 2016.
• SnakeGrid ASA - the “ASA” algorithm has been developed which uses ASA parameter files for the older grids.
• SnakeGrid v4.1.1 - this iteration of the algorithm is a combination of all the previous algorithms.
• SnakeGrid v4.1.2 - this is the latest version of the SnakeGrid software.

[edit] Sources

• https://snakegrid.org/
• https://geomatics.cc/articles/snakegrid-the-ultimate-guide-375

[edit] Related articles on Designing Buildings

• BIM standards.
• Grid.
• Highway.
• Linear view.
• Map.
• Railway.
• Topography.

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