Object Class: Recommended track

Acronym: RECTRC (L,A)

Code: 109

Set Attribute_A: *CATTRK; DATEND; DATSTA; DRVAL1; DRVAL2; NOBJNM; OBJNAM; *ORIENT; PEREND; PERSTA; QUASOU; SOUACC; STATUS; TECSOU; *TRAFIC; VERDAT;

Set Attribute_B: INFORM; NINFOM; NTXTDS; SCAMAX; SCAMIN; TXTDSC;

Set Attribute_C: RECDAT; RECIND; SORDAT; SORIND;

Definition:

A track recommended to all or only certain vessels. (IHO Dictionary, S-32, 5th Edition, 5576)

References:

INT 1: IM 3-4, 5.1, 5.2, 6;

S-4: 432.1; 434;

Remarks:

Recommended tracks include all channels recommended for hydrographic reasons to lead safely between shoal depths. The use of such tracks is generally left to the discretion of the mariner and will depend on the vessel's draught, the state of the tide, adequacy of navigational aids and so on. (IH O Chart Specifications, S-4)

The recommended track is that portion of a 'navigation line' that a ship should use for navigation. (see below)

RECTRC

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Navaid Navaid

X--------------X------------------------------------------

NAVLNE

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In the case of a two-way recommended track, only one value of orientation is encoded (in the attribute ORIENT); the other value can be deduced (i.e. the value in ORIENT + 180 degrees) .

Distinction: navigation line; recommended route centerline; recommended traffic lane part;