RE:RE:Dating myself but recall the famous quoteThis NR from last year shows that GSI had equipped 45K buses, so it appears that they have more buses equipped than the 20K that Bus Patrol has.
It appears that one MDC/bus seems to be the norm.
"Gatekeeper has recently launched several new school bus solutions within its Platform-as-a-Service product suite such as AI Dash Cam, Mobile Wi-Fi, 360 Surround Vision and Student Protector. Under this PaaS business model, Gatekeeper has already
equipped more than 45,000 school buses with its wireless-enabled product offering and has over 3,500 customers throughout North America."
https://stockhouse.com/news/press-releases/2023/03/06/gatekeeper-appoints-vice-president-of-sales