Chart Symbols ECDIS

Question 1

Answer 1

Area of low accuracy

Sounding of low accuracy

Question 2

Answer 2

Dangerous cargo berth

Question 3

Answer 3

Isolated danger of depth less than the safety depth

Question 4

Answer 4

Sounding shallower than safety depth

Sounding deeper than safety depth

Question 5

Answer 5

Underwater hazard with depth of 20 meters or less

Question 6

Answer 6

Underwater hazard with depth greater than 20m

Question 7

Answer 7

Drying height, less than or equal to safety depth

Question 8

Answer 8

Swept area

Question 9

Answer 9

Incompletely surveyed area

Unsurveyed area

Question 10

Answer 10

Sand
Mud
Clay
Silt
Stones
Gravel
Pebbles
Cobbles
Rock
Boulder
Lava
Coral
Shells

Question 11

Answer 11

Rocky ledges or coral reef

Question 12

Answer 12

Obstruction, depth not stated

Obstruction which covers and uncovers

Question 13

Answer 13

Foul area, not safe for navigation

Question 14

Answer 14

Swept sounding, less than or equal to safety depth

Swept sounding, greater than safety depth

Question 15

Answer 15

Dangerous underwater rock of uncertain depth

Question 16

Answer 16

Safe clearance shoaler than safety contour

Question 17

Answer 17

Wreck, always dry, with height shown

Question 18

Answer 18

Wreck, covers & uncovers

Distributed remains of wreck

Question 19

Answer 19

Submerged wreck with depth of 20 meters or less

Submerged wreck with depth greater than 20m

Distributed remains of wreck

Question 20

Answer 20

Wreck showing any portion of hull or superstructure at chart datum

Question 21

Answer 21

Swept sounding for underwater hazard less than safety depth

Swept sounding for underwater hazard greater than or equal to safety depth

Question 22

Answer 22

Non-dangerous wreck, depth unknown

Question 23

Answer 23

Cautionary area

Question 24

Answer 24

Prohibited area

Question 25

Answer 25

Offshore platform

Question 26

Answer 26

Submarine cable Submarine cable area

Question 27

Answer 27

Submarine pipeline area with potentially dangerous contents

Question 28

Answer 28

Deep water route

Question 29

Answer 29

Traffic direction in a one-way lane Traffic direction in a two-way route part Traffic separation line Traffic separation zone

Question 30

Answer 30

Radio calling-in point for traffic in one direction only Radio calling-in point for traffic in both directions Radio calling-in point, direction not encoded

Question 31

Answer 31

Radio station

Question 32

Answer 32

Radar transponder beacon

Question 33

Answer 33

Pilot boarding place Pilot boarding area

Question 34

Answer 34

Unable to display the information fully - update ECDIS

Question 35

Answer 35

Overscaling

Question 36

Answer 36

Additional information available

Question 37

Answer 37

Coast line Coastline of low accuracy

Question 38

Answer 38

Cliffs as an area

Question 39

Answer 39

Flood stream, rate at spring tides Current or tidal stream whose direction is not known Boundary of an area for which there is tidal information

Question 40

Answer 40

Ebb stream, rate at spring tides

Question 41

Answer 41

Non-tidal current