Talk:CATVSL

Drafted by Northern before SNPWG 6

DA 18.08.2006 Aligned with AIS attribute ship type shptyp; definitions and extended

9.Nov. 2006 changed definition for leisure craft; keeping the option to cover all size of leisure crafts

Needs work on list SNPWG8

DA 26 Sep 07 This list is based on a 1999 proposal which was not subsequently adopted. Propose abandon catvsl in favour of shptyp based on IMO (2003) and IALA (2004) guidelines for ship type in AIS.

Jens 11.01. If keeping valid the last entry can be deleted, the entry is given from the system for each attr.

DA 8 Feb 08 Propose delete

DA 2 Jul Following deleting of shptyp trying again with a more rigorous catvsl

25 Jul Jens added a general approach for dangerous cargo ‘ thinking we should give the list a try and built up examples how to use

DA 25 Jul Discussed by email

DA 29 Jul Reinstated catcgo, changed old catcgo to catdhc, and balast.

raphael 09:47, 31 March 2009 (CEST) May need an additional category for barges, towed or pushed units.

jens 20:37, 1 April 2009 (CEST)

At the moment I would reject Raphael's proposal. Rigorously interpreted, accepting this is likely the starting point for an endless list we intented to avoid. Barges/tows etc. may a construction of bulk/container/General cargo vessels depending on what is been transported.

If we see that for certain reasons the list must be extended we can come back to the proposal again.

Raphael: I found a few places where there is a statement about a something applying to "towed or pushed units" over specified limits, but I did not find one that was not accompanied by a similar restriction applying to other vessels in general. So, OK, let's leave it for now and we'll revisit it if we find any special cases. --raphael 00:50, 2 April 2009 (CEST)

DavidAcland 11:28, 11 August 2010 (UTC)

Changed to Enumeration.

I cannot decide how to proceed on the tug and tow case. Pushed units seems easy. The pusher and barges are one unit i.e. a single vessel showing one set of lights. "Tug and tows" are not; they are two vessels with the tug showing special lights. So I could entertain the idea of another item here: "Tugs and tows" or maybe "Towing vessels".

DavidAcland 14:52, 14 February 2011 (UTC)

See also Jens' post at RXNCOD:Talk 13 Feb 2011. This indicates that we do need at least need "Tugs and Tows" as Raphael suggested above. I will add an attribute value and see if we can draft a definition which fits both your real life examples.

jens 05:49, 15 February 2011 (UTC) Do we need to separate pushed and towed units? I afraid the day will come where something applies only for pushed units. I prefer to split the into two entries. Merging them later is simpler than, you know.