I'm writing from memory so I could be wrong, but based on (IIRC) two articles and some comments I read in Polish:
- The 10 days limit was their initial attempt, no GPS involved
- After it turned out the trains were immobilized in the "wrong" location, they added GPS geofencing
- The compressor failure was supposed to happen every day till the end of the year, starting on the scheduled maintenance date. (This might as well be bad coding.)
Again, I could get some details wrong, especially that the articles I read were kinda all over the place (subjectively, IMHO).
- The 10 days limit was their initial attempt, no GPS involved
- After it turned out the trains were immobilized in the "wrong" location, they added GPS geofencing
- The compressor failure was supposed to happen every day till the end of the year, starting on the scheduled maintenance date. (This might as well be bad coding.)
Again, I could get some details wrong, especially that the articles I read were kinda all over the place (subjectively, IMHO).