Why are the nz speed cameras trailers so big what else is in that trailer they don't want us to know about

The large speed camera trailers used in New Zealand are designed to be highly visible and serve as a deterrent to speeding. Their size allows for easier visibility, which is intended to encourage drivers to adhere to speed limits. Inside the trailer, in addition to the speed camera equipment, there may be other technology such as data capture systems, power supplies, and sometimes even devices for recording traffic flow. There isn't typically any secret or hidden equipment in these trailers; they are primarily focused on monitoring vehicle speeds and enhancing road safety. The visibility of the trailers is part of a larger strategy to reduce traffic violations and accidents. If you have specific concerns or suspicions about the equipment, it may be valuable to reach out to local authorities for more detailed information.