We have proposed several facility management systems to use a facility description language. In those systems, the facility description language determines the positional relation between symbols according to the ledger database that defines facility attributes. We have developed these systems individually in each field so far. For the purpose of efficient maintenance and useful generation of drawings, however, we have unified these systems into an integrated drawing generation system. When plural ledger databases are used in this system, some facility drawings can be displayed at the same time, which are for track maintenance, telecommunication, electric power and so on.

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