Problem
Research questions and friction points this paper is trying to address.
cell-site outage
hurricane
cause decomposition
backup power
transport disruption
The Towers Were Standing: A Cause Decomposition of Cellular Outages During Hurricane Helene
๐ค AI Summary
็ ็ฉถ้่ฟๅ่งฃๅๆFCC็พ้พไฟกๆฏ็ณป็ปๆฐๆฎ๏ผๆญ็คบ้ฃ้ฃHeleneๆ้ด่็ชๅบ็ซไธญๆญไธป่ฆ็ฑ็ตๅๅไผ ่พๆ
้่้็ฉ็ๆๅๅผ่ตทใ
๐ Abstract
Hurricane Helene produced the largest absolute cell-site outage in the public FCC record, peaking at 4562 sites. The conventional model is physical: towers destroyed. Helene did destroy over 1700 miles of fibre, but almost none of it was cell sites. We present the first cause-decomposed study of the FCC's Disaster Information Reporting System, reconstructing 80 state-days and 580 county-days from 24 daily filings by two reconciled independent extractions. Damage to cell sites is negligible: 1.1% of attributed cell-site-days across six states, at most 3.8% anywhere. The sites were standing. What took them out divides by terrain: pooled, power dominates at 63.2%, but in mountainous North Carolina severed transport (backhaul) reaches 52.2% against 47.3%, and in Tennessee 69.9%. North Carolina's transport share rises from 7.0% to 85.0% across the event (\r{ho} = 0.92). Seventeen days after landfall, on 15 October, 47 sites lost transport across six contiguous North Carolina counties with no rainfall, no power loss, no damage, and recovery by the next report. Independent active-probe measurement corroborates it: responsive /24s fall 1.02% for twelve hours while Tennessee stays flat. We release the dataset. Backup power is the standard resilience investment; here it addresses the smaller half of the problem.
Innovation
Methods, ideas, or system contributions that make the work stand out.
cause-decomposed study
power supply issues
transmission line disruption
active-probe measurement
๐ Similar Papers
No similar papers found.
