#berths #ships #maintenance start of availability time of berths end of availability time of berths id of first ship demurrage despatch arrival time cargo-time laytime handling time of first ship at all berths id of second ship demurrage despatch arrival time cargo-time laytime handling time of second ship at all berths .... id of last ship demurrage despatch arrival time cargo-time laytime handling time of last ship at all berths id of first maintenance demurrage despatch arrival time cargo-time laytime handling time of first maintenance at all berths ...