
                            ADVANCED NAV ROUTE
                        DATA BASE RECORD LAYOUT
                              (ANR-FILE)

INFORMATION EFFECTIVE DATE: 10/03/2002  
 
    RECORD FORMAT: FIXED  
    LOGICAL RECORD LENGTH: 264  
 
  
  
FILE STRUCTURE DESCRIPTION:  
---------------------------  
  
    THERE ARE A VARIABLE NUMBER OF FIXED-LENGTH RECORDS FOR  
    EACH ADVANCED NAV ROUTE (ANR).  THE NUMBER OF RECORDS IS  
    DETERMINED BY THE NUMBER OF SEGMENTS USED TO DESCRIBE THE  
    ROUTE. THE DIFFERENT RECORD TYPES WILL BE IDENTIFIABLE BY A  
    RECORD TYPE INDICATOR (ANR1 OR ANR2) AND THE ROUTE KEY 
    (ORIGIN IDENT, DESTINATION IDENT, AND ROUTE TYPE CODE). BECAUSE  
    THERE CAN BE MORE THAN ONE ADVANCED NAV ROUTE BETWEEN TWO LOCATIONS,  
    A SEQUENCE NUMBER IS INCLUDED IN THE ROUTE KEY TO INSURE  
    THAT A UNIQUE ROUTE KEY IS PRESENT. THE ROUTE SEGMENT  
    RECORDS ARE ALSO ORDERED BY A SEQUENCE NUMBER. THE FILE IS  
    SORTED BY ROUTE KEY, RECORD TYPE, AND SEGMENT SEQUENCE NUMBER.  
  
    EACH RECORD ENDS WITH A CARRIAGE RETURN CHARACTER AND LINE FEED 
    CHARACTER (CR/LF). THIS LINE TERMINATOR IS NOT INCLUDED IN THE 
    LOGICAL RECORD LENGTH.

DESCRIPTION OF THE RECORD TYPES:  
--------------------------------  
  
    'ANR1' RECORD TYPE CONTAINS THE BASE ADVANCED NAV ROUTE DATA.  
    IT CONTAINS DESCRIPTIVE INFORMATION THAT IS APPLICABLE TO THE  
    ENTIRE ROUTE. THERE IS ALWAYS A ANR1 RECORD.  
  
    'ANR2' RECORD TYPE CONTAINS DATA TO DESCRIBE ONE SEGMENT ALONG  
    THE ROUTE. IT IDENTIFIES THE SEGMENT TYPE (AIRWAY, NAVAID,  
    FIX, ETC.) AND PROVIDES ADDITIONAL INFORMATION TO DESCRIBE  
    THE SEGMENT, DEPENDING ON THE TYPE OF SEGMENT. THERE CAN BE  
    ANY NUMBER OF ANR2 RECORDS (INCLUDING NONE AT ALL).  
  
  
GENERAL INFORMATION:  
--------------------  
     1.  LEFT JUSTIFIED FIELDS HAVE TRAILING BLANKS  
     2.  RIGHT JUSTIFIED FIELDS HAVE LEADING BLANKS  
     3.  ELEMENT NUMBER IS FOR INTERNAL REFERENCE ONLY  
         AND NOT IN RECORD  
     4.  THE ANR ROUTE UNIQUE KEY (ELEMENT NUMBER:DLID) IS MADE UP OF THE 
         ORIGIN IDENT, DESTINATION IDENT, ROUTE TYPE, AND A SEQUENCE NUMBER 
         TO DISTINGUISH MULTIPLE ROUTES BETWEEN TWO POINTS.  
  
*********************************************************************  
  
            'ANR1' RECORD TYPE - BASE ROUTE DATA  
  
********************************************************************  
  
J  T   L   S L   E N  
U  Y   E   T O   L U  
S  P   N   A C   E M  
T  E   G   R A   M B  
       T   T T   E E  
       H     I   N R  
             O   T  
             N           FIELD DESCRIPTION  
  
  
L AN   04 00001  N/A     RECORD TYPE INDICATOR.  
                           ANR1:  BASE ROUTE DATA  
L AN 0005 00005  DLID    ORIGIN FACILITY LOCATION IDENTIFIER  
L AN 0005 00010  DLID    DESTINATION FACILITY LOCATION IDENTIFIER  
L AN 0003 00015  DLID    TYPE OF ROUTE (CODE) - ANR
R  N 0002 00018  DLID    ROUTE IDENTIFIER SEQUENCE NUMBER (1-99)  
L AN 0030 00020  N/A     TYPE OF ROUTE (DESCRIPTION) - ADVANCED NAV ROUTE
L AN 0075 00050  PR20    ADVANCED NAV ROUTE AREA DESCRIPTION -
                           AN 8 CHARACTER ANR ID FOLLOWED BY OPTIONAL
                           ADDITIONAL DESCRIPTION INFORMATION. 
L AN 0040 00125  PR21    ADVANCED NAV ROUTE ALTITUDE DESCRIPTION  
L AN 0035 00165  PR22    AIRCRAFT ALLOWED/LIMITATIONS DESCRIPTION  
L AN 0015 00200  PR25    EFFECTIVE HOURS (GMT) DESCRIPTION (1)  
L AN 0015 00215  PR25    EFFECTIVE HOURS (GMT) DESCRIPTION (2)  
L AN 0015 00230  PR25    EFFECTIVE HOURS (GMT) DESCRIPTION (3)  
L AN 0020 00245  PR26    ROUTE DIRECTION LIMITATIONS DESCRIPTION  
  
   
********************************************************************  
  
     'ANR2' RECORD TYPE - ADVANCED NAV ROUTE SEGMENT DESCRIPTION  
  
*******************************************************************  
  
J  T   L   S L   E N  
U  Y   E   T O   L U  
S  P   N   A C   E M  
T  E   G   R A   M B  
       T   T T   E E  
       H     I   N R  
             O   T  
             N           FIELD DESCRIPTION  
  
L AN   04 00001  N/A     RECORD TYPE INDICATOR.  
                           ANR2: ADVANCED NAV ROUTE SEGMENT DATA  
L AN 0005 00005  DLID    ORIGIN FACILITY LOCATION IDENTIFIER  
L AN 0005 00010  DLID    DESTINATION FACILITY LOCATION IDENTIFIER  
L AN 0003 00015  DLID    TYPE OF ROUTE (CODE) - ANR 
R  N 0002 00018  DLID    ROUTE IDENTIFIER SEQUENCE NUMBER (1-99)  
L AN 0003 00020  PR23/4  SEGMENT SEQUENCE NUMBER WITHIN THE ROUTE  
L AN 0015 00023  PR23/4  SEGMENT IDENTIFIER (NAVAID IDENT, AWY NUMBER  
                           FIX NAME, SID NAME, STAR NAME)  
L AN 0007 00038  GEN     SEGMENT TYPE (DESCRIBED)  
                           AIRWAY,FIX,SID,STAR,NAVAID,UNKNOWN  
L AN 0002 00045  PR23    FIX STATE CODE - POST OFFICE ALPHA CODE  
                           BLANK IF NOT A FIX SEGMENT  
L AN 0002 00047  PR23    NAVAID FACILITY TYPE (CODE)  
                           C,D,F,L,M,MD,O,R,RD,T,U,V  
                           CODES ARE DESCRIBED BELOW  
                           BLANK IF NOT A NAVAID SEGMENT  
L AN 0020 00049  PR23    NAVAID FACILITY TYPE (DESCRIBED)  
                           BLANK IF NOT A NAVAID SEGMENT  
  
                           CODE   DESCRIPTION  
                           ----   ------------------------  
                             C    VORTAC  
                             D    VOR-DME  
                             F    FAN MARKER  
                             L    LFR  
                             M    MARINE NDB  
                             MD   MARINE NDB/DME  
                             O    VOT  
                             R    NDB  
                             RD   NDB/DME  
                             T    TACAN  
                             U    UHF NDB  
                             V    VOR  
  
L AN 0007 00069  PR23    RADIAL AND DISTANCE FROM NAVAID  
                           RRR OR RRR/DDD  
                           BLANK IF NOT A NAVAID SEGMENT  
                           BLANK IF SEGMENT IS DIRECTLY TO THE NAVAID  
L AN 0189 00076  N/A       BLANK 

