Street Centerlines 
  
The street centerline attributes are outlined below as shown in the shape  
file version of the dataset.  In the ArcInfo coverage version, a few  
additional ArcInfo specific fields exist, and some fields may have slightly  
different names. 
  
LENGTH:     ArcInfo default field = length of arc in meters.  
  
L_F_ADD:    Left from node address 
  
R_F_ADD:    Right from node address 
  
L_T_ADD:    Left to node address 
  
R_T_ADD:    Right to node address 
  
STREETALL:  Full street name 
  
F_CLASS:    Feature class code 
  
ALT_NAM1:   Alternate street name 1 
 
ALT_NAM2:   Alternate street name 2 
  
F_XSTREET:  From cross street 
  
T_XSTREET:  To cross street 
  
CENST_L:    State code (left side) 
  
CENCTY_L:   County code (left side) 
 
CENMUN_L:   Municipal code (left side) 
 
GNIS_L:     GNIS code (left side) 
  
CENST_R:    State code (right side) 
  
CENCTY_R:   County code (right side) 
  
CENMUN_R:   Municipal code (right side) 
 
GNIS_R:     GNIS code (right side) 
  
FIPS5_L:    5 Digit FIPS municipal or place code (left side) 
  
FIPS5_R:    5 Digit FIPS municipal or place code (right side) 
  
ZIP5_L:     5 Digit Zip Code (left side) 
  
ZIP5_R:     5 Digit Zip Code (right side) 
  
CITYLEFTL:  Alpha city name (left side) 
  
CITYRIGHT:   Alpha city name (right side) 
  
PREDIR:     Prefix street direction 
  
STREETNAME: Street name portion of entire street name 
  
TYPE:       Street type.  A list of most of these is available from the USPS 
            web site at  http://pe.usps.gov/text/pub28/pub28apc.html#508hdr2 . 
  
SUFDIR:     Suffix street direction 
  
CTYLABRV:   City name abbreviation (left) 
  
CTYRABRV:   City name abbreviation (right) 
  
SPEED_LIM:  Generalized speed limits 
  
ONEWAY:     One way status 
  
HIGHWAYNUM: Highway/County road number or letter 
  
TLGID:      Unique identification number 
  
  
Street centerline attribute notes: 
  
a. - The first seven fields represent standard Arc/Info items 
b. - Street address ranges do not necessarily exist where only theoretical  
     ranges exist; however, in many cases they do. 
c. - Feature class codes (f_class) are generalized versions of the U.S. census  
     bureau standards. Namely: Typical Interstates are labeled A10, Interstate  
     HOV lanes are labeled A15 (new with Dec. '98 release), US highways A20,  
     State highways A25, County Roads A30, City Streets A40, Ramps and Loops  
     A63, Service Drives A64, Private Roads A66, Dormitory Walkways A71, and  
     Restricted Access A98. As of release 2.2b (a mid-quarter update on August  
     5, 1998), US highways and State Highways were split into two distinct  
     feature class codes of A20 (US Highways) and A25 (State Highways). 
d. - Streetall represents the full street name. Predir, Streetname, Type, and  
     Sufdir represent parsed components of streetall as parsed to standard USPS  
     types and USPS standard direction names. 
e. - F_xstreet and T_xstreet are the values for streetall of the from and to  
     cross streets for each segment based on the from and to nodes.  (new item  
     with Dec. '98 release - currently only populated in the 7 county metro  
     area) 
f. - Due to address matching and parsing issues, street directions are always  
     placed in the suffix direction field. Street names containing direction  
     names as part of their actual street name are originally parsed and then  
     incorporated back into the street item and removed from the predir item. 
g. - Fips5_l and Fips5_r are unique 5 digit numeric Federal Information 
     Processing Standards (FIPS) cods. 
h. - Citylabrv and Cityrabrv are unique alpha city name abbreviations as  
     produced by The Lawrence Group. These fields are named in conjunction with  
     Twin Cities metro area street atlas produced by TLG. 
h. - Speed_lim is a generalized field where speed limits are populated at this  
     time based only on the f_class of a given segment. 
i. - Oneway is a field which is encoded with a 2 if the street is two-way, a 1  
     if the segment represents a one-way street on which traffic moves in the  
     direction of the flow of the segment; and -1 if the segment represents a  
     one-way street on which traffic moves in the opposite direction of the  
     flow of the segment. 
j. - Highway_num is the primary highway or county road number or letter, this  
     number is taken from the name with the highest feature class code on each  
     street segment. (new item with Dec. '98 release) 
k. - The TLGID (and <cover>-id) are the same value per segment and these  
     identification numbers remain consistent for each release of the database.