Moon Rail. Lunar Series, #6

Moon Rail: A Short StoryLunar Series Book 6 Building a two-thousand-mile rail system to connect the Mare Frigoris settlements was a dangerous undertaking. Young Graham Timothy thought he was up for the task. But building the first few miles could be more than dangerous; it could be deadly. In the Remembered Earth Universe: Lunar Series, those that would capitalize on Moon settlement want it done as cheaply as possible, that would be with AI and robots.
But AI and robots don't always do the job, and when they don't, men have to pick up the pieces. But at what cost?The Remembered Earth Universe covers the science and technology of the next hundred years, as mankind moves into cislunar space (defined as that space in and around the Earth-Moon system and slightly beyond), and takes tentative steps to destinations further. Hard Science Fiction - Old School.