Validate → preview → confirm. Nothing is written until you confirm. Build a department-approved dataset and load it here.
Create login accounts, reset passwords, and set roles. New accounts get a temporary password they must change at first login.
Corridors must have two actual boundary streets. Enter south/north endpoints for north-south roads, or west/east endpoints for east-west roads. Unbounded legacy corridors are inactive until verified. New or edited areas do not rewrite past contacts.