If you centralize data reporting for every yard of sidewalk in the US, here’s a back-of-the-napkin calculation:
- Miles of paved roads in the US: 2,605,531 wikipedia
- Estimated miles of sidewalk in the US: 5,210,662 or ~5 million
- Estimated yards of sidewalk in the US: 9,170,765,120, aka ~9 billion
Assume 1 minimum size IPv6 packet (84 bytes) from every yard going to a single central processing destination. With no losses, resending, or other congestion.
- Once/day = 71 Mbps
- Once/hour = 1.7 Gbps