BRIDGE SIGNALS; MARIEHOLMSBRON (SWING BRIDGE)
Request for the bridge to be opened on VHF channel 9,
call MARIEHOLMSBRON.
Northbound: Call at reporting point A and C.
Southbound: Call at reporting point D.  

Bridge signals:
FR       Bridge cannot be opened.
QR       Bridge is closed or not ready.
QR + QW	 Requesting vessel is observed.
QR + FW	 Bridge about to be opened.
QG       Bridge open - proceed.