Navigation Signals

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according to addition No. 7 of Ministry of Transport edict
No. 344/1991
which defined Navigation safety rules in Czech Republic

Basic signals

A. Restriction signals

A.1 Passage forbidden (common signal)
A.2 Overtaking forbidden
A.3 Cross overtaking of vessel formations forbidden
A.4 Passing and overtaking forbidden
A.5 Anchoring or makefasting forbidden
A.5.1 Vessel standing forbidden in defined area
A.6 Anchoring and towage of anchors, cables and chains forbidden
A.7 Makefasting forbidden
A.8 U-turn forbidden
A.9 Making waves or intake forbidden
~ A.10 Navigation forbidden outside defined area (between bridge or weir spans)
A.11 Locking temporary forbidden, prepare to lock
A.12 Navigation of vessels with own engine forbidden
A.13 Navigation of sport and recreation vessels forbidden
A.14 Water skiing forbidden
A.15 Navigation of sailboats forbidden
A.16 Navigation of vessels, who are not sailboats and don't have own engine, forbidden
A.17 Windsurfing forbidden
A.18 Navigation of power boats forbidden
A.19 Snubbing of vessels forbidden

B. Obligation signals

B.1 Navigate in direction defined by arrow
B.2.a Navigate to the left side of fairway
B.2.b Navigate to the right side of fairway
B.3.a Navigate at the left side of fairway
B.3.b Navigate at the right side of fairway
B.4.a Change navigation to the left side of fairway
B.4.b Change navigation to the right side of fairway
B.5 Stop (in defined cases)
B.6 Maximal speed (in km/h)
B.7 Give sound signal
B.8 Attention
B.9.a Obligation to ascertain before navigation to main waterway, that this maneuver doesn't make vessels navigating main waterway to change direction or speed
B.9.b Obligation to ascertain before navigation to or crossing main waterway, that this maneuver doesn't make vessels navigating main waterway to change direction or speed
B.9.c Obligation to ascertain before navigation to main waterway, that this maneuver doesn't make vessels navigating main waterway to change direction or speed
B.9.d Obligation to ascertain before navigation to main waterway, that this maneuver doesn't make vessels navigating main waterway to change direction or speed
B.10 Vessels navigating main waterway are asked, if it's necessary, regulate their direction or speed, to make approved exit from port or secondary waterway
B.11.a Put radio station into operation
B.11.b Put radio station into operation (at defined channel)

C. Constraint signals

C.1 Depth limited (number = depth in meters)
C.2 Locking height limited (number = height in meters)
C.3 Width of water channel limited (number = width in meters)
C.4 Other navigation limitation, get information
C.5 Distance from riverside (number = width in meters)

D. Recommendation signals

D.1.a Recommended meeting in both directions
D.1.b Recommended meeting in one direction (meeting in other direction forbidden)
~ or ~ D.2 Recommendation to navigate in defined area (between bridge or weir spans)
D.3 Recommendation to navigate in direction defined by arrow (or from constant to flashing light)

E. Warning and information signals

E.1 Passage permited (common signal)
E.2 Electric wire crossing
E.3 Weir
E.4.a Ferry (with conductor)
E.4.b Ferry (without conductor)
E.5 Anchoring or makefasting approved
E.5.1 Vessel standing approved in defined area
E.5.2 Vessel standing approved in defined area
E.5.3 Maximal number of parallel standing vessels
E.5.4 Place reserved for push vessels, that need not hold one, two or three blue lights or cones
E.5.5 Place reserved for push vessels, that have to hold blue light or cone
E.5.6 Place reserved for push vessels, that have to hold two blue lights or cones
E.5.7 Place reserved for push vessels, that have to hold three blue lights or cones
E.5.8 Place reserved for vessels, except push vessels, that need not hold one, two or three blue lights or cones
E.5.9 Place reserved for vessels, except push vessels, that have to hold blue light or cone
E.5.10 Place reserved for vessels, except push vessels, that have to hold two blue lights or cones
E.5.11 Place reserved for vessels, except push vessels, that have to hold three blue lights or cones
E.5.12 Place reserved for all vessels, that need not hold one, two or three blue lights or cones
E.5.13 Place reserved for all vessels, that have to hold blue light or cone
E.5.14 Place reserved for all vessels, that have to hold two blue lights or cones
E.5.15 Place reserved for all vessels, that have to hold three blue lights or cones
A.6 Anchoring and towage of anchors, cables and chains approved
E.7 Makefasting approved
E.7.1 Standing of vessel approved for loading or discharge vehicle
E.8 Place recommended for U-turn
E.9.a Vessel is navigating main waterway; has right of way
E.9.b Vessel is navigating main waterway; has right of way
E.9.c Vessel is navigating main waterway; has right of way
E.9.d Vessel is navigating main waterway; has right of way
E.9.e Vessel is navigating main waterway; has right of way
E.9.f Vessel is navigating main waterway; has right of way
E.9.g Vessel is navigating main waterway; has right of way
E.10.a Vessel is navigating secondary waterway; vessels navigating main waterway have right of way
E.10.b Vessel is navigating secondary waterway; vessels navigating main waterway have right of way
E.10.c Vessel is navigating secondary waterway; vessels navigating main waterway have right of way
E.10.d Vessel is navigating secondary waterway; vessels navigating main waterway have right of way
E.11 End of prohibition or restriction
E.12 Preliminary signals constant light(s) = stop in defined cases, flashing light(s) = continue navigation
E.13 Drinking water
E.14 Phone
E.15 Navigation of vessels with own engine approved
E.16 Navigation of sport and recreation vessels approved
E.17 Water skiing approved
E.18 Navigation of sailboats approved
E.19 Navigation of vessels, who are not sailboats and don't have own engine, approved
E.20 Windsurfing approved
E.21 Navigation of power boats approved
E.22 Recommended place for snubbing of vessels
E.23 Possibility to obtain information by radio (at defined channel)

Side signals for waterway definition

Waterway position signals

1. Waterway beside right riverside
2. Waterway beside left riverside

Riverside signals

1. Right riverside
2. Left riverside