I just finished reading "A Man on the Moon" by Andrew Chaikin, an amazing read. For the missions involving the Lunar Roving Vehicle (LRV, Apollo 15-17), there are some mentions of astronauts reporting on the traversability of the terrain and how it compared with predictions from mission planners: more (small) craters than expected, less boulders, etc.

Were there backup traverses planned for these missions? For instance, if one or a few waypoints/stations could not be reached due to undrivable terrain, were there other/alternate routes prepared? And if so, are they documented anywhere?

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    $\begingroup$ Apollo 17 Traverse Planning Data, 3rd Edition states "In order to expedite publication of the changes to the nominal traverses, the contingency planning summary will be issued in a special supplement." Unfortunately I haven't been able to locate the supplement. $\endgroup$ Oct 8, 2021 at 18:23
  • $\begingroup$ Interesting, I'll look out for that! I wonder if a similar contingency plan was issued for earlier missions, or whether this only happened on Apollo 17 in response to events on Apollo 15 or 16. $\endgroup$
    – olamarre
    Oct 8, 2021 at 20:00


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