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Direction Signs
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Direction Signs

( Maritime Progress )



Direction Signs

 

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Regulations

SOLAS Consolidated 2004 Edition Chapter III Regulation 11.5, Chapter II-2 Regulation 13.1.3 and Regulation 13.3.2.5.1 require all escape routes to be marked with photoluminescent signs or signs illuminated by emergency light or both.  IMO publication IMO-981E indicates that exit signs should comprise of a "running man" pictogram, an arrow and the word "Exit".

 

New Regulations for marine signage are currently being prepared by the ISO working group. Results from this group and subsequent ratification by IMO are not expected for some time. One point under discussion is the use of the word "Exit"and its use in upper and lower case.  As a consequence we are offering "Exit"signs in both upper and lower case formats.

 

Installation

Primary escape routes should be marked with signs comprising the "Running Man" pictogram, a direction arrow and the word "Exit". Secondary escape routes should employ similar signs but with the wording "Exit for emergency use only" (this practise is under review by the ISO working group but at present we are unable to offer further guidance until ratification by the IMO). Signs should be positioned approximately 1700mm from deck level for normal direction marking and not more than 300mm from deck level for LLL systems. Where possible signs at doors or hatches should be positioned above the door so that the sign is still visible when the door or hatch cover is open. Direction signs over doors should be limited to either a sign containing an upward pointing arrow, indicating the escape route continues through the door, or to the "running man" pictogram plus the word "Exit" indicating that the door is the final exit.

 

 Frequency of marking is almost impossible to define accurately, as the final decision rests with the surveyor accepting the route marking, however, the following points should be adhered to: 1) Ever Change of direction should be marked with the appropriate sign. 2) Signs in an alley or corridor should be spaced at intervals no greater than the maximum viewing distance of the sign employment (See page 1 for details of recommended viewing distances). 3) when in public or communal areas, an "Exit" sign should be within a 360o view.

 

Where more appropriate (Ex. crew accommodation and machinery spaces), escape routes may be marked with the muster /  assembly or embarkation station direction signs shown on page 8. whatever type of sign is employed to mark the escape route, the route should always lead to either a muster/ assembly station or an embarkation station which should be identified by the appropriate sign, taken from the list of IMO Symbols.

 

 Explanation of Escape Routes

The passengers or crew of any ship, must be aware of the evacuation routes available to them from within the vessel. There are usually two types of evacuation route; Primary & Secondary.

 

Primary Evacuation Route: The quickest and easiest way to the assembly/ muster station or survival craft.

 

Secondary Evacuation Route: A specially designated exit route for use when the primary route us unusable.