This read-create true/false object controls whether this static route gets advertised out to other routers via a dynamic routing protocol, per the description. Admins enable this when they want a manually configured route to be visible to and used by the rest of the network's dynamic routing, not just kept local to this device. For example, an admin adding a static route to a newly attached subnet would enable this object so that route gets redistributed into the routing protocol and reaches other routers in the network.