I have asked this question on MSE, but besides earning a TumbleWeed award, there was no feedback.
My question is, where I can download all optimal tours of the TSPLib95 library? I already did a lot of googling and found that the original resource of the University of Heidelberg hasn't been upated since 2008 and has not all optimal tours available. Also the distance calculations of the X-ray problems are hard to understand/find online.
I would be a bit surprised if the standard collection of TSP problems were not maintained and available anymore; I am currently checking new heuristics for the TSP problem and would like to be able to provide results that are based on a collection of standard instances.
Any help would be greatly appreciated.
