Lunar Mobility Drivers and Needs (ACR24 white paper)¶
Document: Lunar Mobility Drivers and Needs, a white paper headed "2024 Moon to Mars
Architecture" and footed "2024 Moon to Mars Architecture Concept Review". No date is printed
beyond the year; the download path is 2024/06. Files: text
sources/text/docs/2024-06-acr24-lunar-mobility-drivers-and-needs.txt; raw
sources/raw/docs/2024-06-acr24-lunar-mobility-drivers-and-needs.pdf (fetched
2026-10-01T07:22:46Z from
https://www.nasa.gov/wp-content/uploads/2024/06/acr24-lunar-mobility-drivers-and-needs.pdf, per
sources/manifest.csv). All five pages were checked against the PDF.
Page numbers. The PDF has five pages, but the printed numbers run 1, 3, 4, 5, 6: there is no
printed page 2. The wiki cites PDF pages, which match the text file's [page N] markers, as
it did for the 2025 Architecture Update (open question 29). The contents
table below gives both.
Which paper this is. NASA's White Papers web page lists it under "2024 Architecture Concept Review": "Discusses the need to move cargo and assets on the lunar surface and factors that will significantly impact mobility systems" (White Papers page, fetched 2026-10-01). It was "published concurrently" with the Lunar Surface Cargo paper (p. 3), and both come before ADD Revision B (Dec 2024). It is 2024 context, not the current architecture.
Summary. Getting cargo from where a lander puts it down to where it will be used is "one of the largest drivers of mobility needs on the lunar surface" (p. 1). The paper sizes that demand at 500 to 15,000 kg moved over up to 5,000 m, against 800 kg of uncrewed cargo for the LTV (its introduction gives a different figure, 1,500 kg, for planned capabilities; see Oddities). It then lists what makes large-scale mobility hard: energy, slopes, terramechanics, regolith wear, and the need for autonomy and standard interfaces. Its content is on Mobility Systems.
Contents¶
| PDF page | Printed | Section | Wiki home |
|---|---|---|---|
| 1 | 1 | Introduction; Mobility Needs (three relocation distances) | Mobility Systems |
| 2 | 3 | Figure 1, example traverses | below |
| 3 | 4 | Figure 2, demand against LTV and LRV capability; lighting and slopes; Cargo and Asset Mass Demands | Mobility Systems |
| 4 | 5 | Relocation frequency and autonomy; Mobility Technology and Drivers; Mobility System Features; Summary | same |
| 5 | 6 | Key Takeaways; References 1–6 | this page |
What the PDF shows that the text layer loses¶
- Figure 1 (p. 2), "Example traverses showing landing locations and potential end-use locations." A map with two "Landing Site" points and four end uses: "ISRU Mining", "ISRU Processing", "Habitation Module" and "Power Augmentation". A circle around the habitation module is labeled "2 km single walk only radial distance". The legend gives five traverse lengths: Power Augmentation to ISRU Mining 5.0 km; ISRU Mining to ISRU Processing 4.0 km; Landing Site to Habitation Module 3.8 km; Landing Site to ISRU Mining 2.2 km; Power Augmentation to Habitation Module 1.2 km. Its note: "All values are approximate. Graphic illustrates architectural considerations. Not meant as an accurate depiction of a planned lunar site." The text layer keeps only the caption.
- Figure 2 (p. 3), "Mobility demand forecast ranges compared to LTV and LRV transport capabilities." Titled "lunar cargo relocation needs". A mass axis from 500 to 16,000 kg, banded "Small", "Mid-Size" and "Large", under a banner reading "Human Lunar Return", "Foundational Exploration" and "Sustained Lunar Evolution" from left to right. Items, as labeled: "Vertical Solar Array Technologies", "Lunar Surface Relay - Mobile", "Sample Return Freezer", "Fission Surface Power", "Logistics for 2 Crew with Pressurized Rover" and "Logistics for 4 Crew with Pressurized Rover and Habitat" (each at 7, 14, 21 and 28 days), "Initial Surface Habitation", "Surface Habitats", "In-Situ Resource Utilization Pilot Plant" and "logistics". Two lines mark "LTV Cargo Transport Capability" at "800kg" and "LRV Cargo Transport Capability" at "490kg". Its note: "While contracts are in place for some cargo identified, this figure does not represent agency decisions to fly any item, nor does it reflect the order of flights for any of the items represented." The wiki reads no bar values off it. The same chart, with four rovers added as cargo items ("Lunar Terrain Vehicle", "IP Mobility System", "Endurance Rover" and "Pressurized Rover"), is the cargo paper's Figure 1 (Lunar Surface Cargo).
- Emphasis. One sentence is bold in the PDF: "This combination of factors creates a significant technological gap between existing systems and mobility demands for future exploration" (p. 4).
Key takeaways (p. 5)¶
- "Lunar exploration objectives require significant mobility of cargo and assets across the lunar surface from landing site to point of use at ranges of 5 to 5,000 m."
- "Currently, the surface mobility capability expressed in the architecture is limited to 800 kg. However, future mobility demands include aggregated logistics and larger elements as massive as 12,000 kg or more."
- "Large-scale mobility is not simply scaled up small-scale mobility; energy and environmental considerations are crucial to the design process."
- "Interoperability and autonomous or semi-autonomous capabilities on mobility systems enable mission planning flexibility and increase available crew utilization time."
What changed by Rev C¶
These comparisons are the wiki's. The paper predates Revisions B and C.
- A new cargo rover. The paper says the defined mobility elements, the LTV and the Pressurized Rover, "are primarily for crew transportation, with limited cargo mobility functions" (p. 1). Rev C added the Lunar Utility Rover, uncrewed, for "a moderate amount of cargo (thousands of kg)" (ADD Rev C, p. 61). The 2025 Architecture Update says the rover "responds to previously identified needs for additional autonomous lunar surface mobility capabilities" and points to a 2024 white paper titled "Lunar Logistics and Mobility" (Update, p. 5). That title isn't this paper's, and NASA's White Papers page lists no paper by that name. The wiki doesn't treat them as the same (open question 30).
- The Mobility Systems description. Rev C says mobility elements "would transport these systems (up to 15 tons) from landing sites to points of use, which can be kilometers away in mountainous terrain" (ADD Rev C, p. 43). The paper's figures are 12,000 to 15,000 kg for habitation elements and up to 5,000 m (pp. 3–4).
- Crew and duration. The paper's basis for Foundational Exploration is "four crew members operating on the lunar surface for approximately 30 days" (p. 3). Rev C's legacy decisions are "up to four crew members" (LD-06-L) and "up to 33 consecutive Earth days" (LD-07-L) (Key definition tasks).
- The LTV's 800 kg. Rev C's LTV one-pager gives no cargo mass (LTV).
- Gaps. The paper promised "More detail on architectural gaps for lunar mobility" at the close of the 2024 cycle (p. 4). Revision B was the first ADD to list technology gaps (ADD Rev C, p. 3). The Rev C gaps on the paper's subjects are #0805 (autonomous mobility), #0806 (offloading and handling) and #0808 (relocating assets over 6 t). None cites the paper.
- Functions. Rev C's lunar function list has separate groups for unloading, repositioning and relocating cargo and assets, FN-M-401 L to FN-M-602 L (Lunar functions).
References that are other architecture documents¶
The paper cites six references (p. 5). As printed:
| Ref. | Title, as printed | Among the wiki's sources? |
|---|---|---|
| 1 | Why Artemis Will Focus on the Lunar South Pole Region, 2022 Moon to Mars Architecture White Paper | no |
| 2 | NASA's Moon to Mars Architecture Definition Document | the link is the architecture web page, source page |
| 3 | Lunar Logistics Drivers and Needs, 2023 Moon to Mars Architecture White Paper | no |
| 4 | Lunar Site Selection, 2023 Moon to Mars Architecture White Paper | yes, as a file filed with the February 2024 workshop briefings: source page |
| 5 | Lunar Surface Cargo, 2024 Moon to Mars Architecture White Paper | yes, source page |
Reference 6 is NASA's Apollo Lunar Roving Vehicle web page. "No" means no file in
sources/manifest.csv or sources/text/pages/ has a matching name.
Oddities¶
Recorded as printed, PDF checked (open question 45):
- Two cargo capacities. The introduction says "Current capabilities planned for lunar surface operations are limited to transporting approximately 1,500 kg of cargo" (p. 1). The body and the takeaways give 800 kg, for the LTV and for "the surface mobility capability expressed in the architecture" (pp. 3, 5). The paper doesn't say what the 1,500 kg covers.
- Three distance ranges. "ranges of 50 to 5,000 m" (p. 3), "distances of up to 5,000 m" (p. 4), and "ranges of 5 to 5,000 m" (p. 5).
- Three mass ranges. "1,000 to 15,000 kg per asset" mismatch (p. 3), "500-to-15,000 kg" (p. 4), and "as massive as 12,000 kg or more" (p. 5).
- Lunar Site Selection's year. The text calls it "the 2022 Moon to Mars Architecture 'Lunar Site Selection' white paper" (p. 1); reference 4 and NASA's White Papers page put it under 2023, and so does the paper itself, in its sidebar and footers (source page).
- Promised papers. The paper promises "a white paper on NASA's lunar surface strategy" (p. 4). NASA's White Papers page lists no paper with that title.
- No printed page 2 (above).
Related pages¶
Mobility Systems · Lunar Surface Cargo · Lunar Terrain Vehicle · Lunar Utility Rover · Pressurized Rover · #0805 · #0806 · #0808 · Logistics Systems · Foundational Exploration