@CFECAK - Inspection information is collected and stored on the sign feature. Usually, public works agencies will only track the current state and condition of a sign, and will replace/retire the sign when needed, thus multiple inspections or an inspection history is not always necessary.
If you would like to input multiple inspections of a sign, you could do so with the existing maintenance related table, or modify the schema to add a related table for inspections as well.
I'm curious, what is the nature of the multiple inspections? Would they be around sign retroreflectivity, or more of a general inspection?
