LBRS Road Centerline Metadata (as of 06/09/2010)

The Road Centerlines layer contains all streets regardless of road type. NLFID and Log 
values will allow ODOT to link this layer to existing databases and is designed to allow both 
map display and network routing. Address ranges for each segment will be used for 
geocoding and emergency dispatch. The segment ID may be used to link site addresses to 
the centerlines. All road segments were driven and extended/developed to 2000 feet past 
the county boundary. All road segments which leave and reenter Medina County were 
developed as a continuous road segment with nodes developed at the County Boundary. 
Road segments that leave the county have a node placed at the county boundary 
defined by the “bndry” coverage supplied by the Medina County Engineers Office. 

All road segments include a field for beginning log and ending log. These fields are 
populated with mileage information (each road segment has a beginning log point and an 
ending log point) as defined by the County Engineer and ODOT. The supplied original 
centerline layer will contained an arc attribute of “gba” which is the unique road segment value 
and a node attribute of “gba” which is the unique intersection value. The “Beg_Log” and 
“ End_Log” fields were attributed for all road segments in the established system. The 
“ gba” fields are populated with an incremental value and as such any segments and 
intersections added have the unique value field populated with the next highest value. 

It is not the intent of Medina County to alter the current 2-D placement of the existing GIS 
centerlines but rather to utilize GPS technology to obtain accurate 3-D mileage along road 
segments. 

The road centerline exportfile contains the following attribute data:

Field Name - Data Type - Description 

seg-id - 10 C - identifier for road segment 
(original attribute “gba”) 

new - 1 I - used to flag centerlines that have not been constructed
1 = centerlines that have not been constructed, but may be in the future
2 = centerlines that are not expected to ever be constructed
	NOTE: all private centerlines that have not been constructed are given a value of 1.
		   -any dedicated centerlines prior to 6/20/2007 that have not been constructed are 		   given a value of 2.
		   -any dedicated centerlines after 6/20/2007 that have not been constructed are 			   given a value of 1.

roadname - 50 C - Prefix (abbreviated) + Name 
(spelled out) + Type (spelled out), ie. W ROAD,   
N CREEK DRIVE 

suffix - 2 C - primary street suffix

first# - 6 C - primary road number road type,
  ie. IH71,  
IH = interstate 
FH = federal highway 
SR = state route 
CH = county highway 
TH = township highway 
PRIV = private 
0 = municipal 

second# - 6 C - secondary road and road  type, 
ie.SH689 
SH = state highway 

l_f_add -  - From Address 

l_t_add -  - To Address 

r_f_add -  - From Address 

r_t_add -  - To Address 

l_zip -  - zipcode Left 

r_zip -  - zipcode Right 

county - 3 C - letter ODOT code 

nlfid -  - NLFID per standards 

beg_log - 10 C - unique id for of segment 

end_log - 10 C - unique id for of segment 

coll_date -  - of centerline 

dir - 1 C - of travel 
B = Both 
T = One-way from To  
F = One-way from From  

div_code - 1 I - 
1 = divided 
0 = not divided 

dotmpbeg -  - supplied MP for of segment,
1000000 if not found 

dotmpend -  - supplied MP for of segment, 
1000000 if not found 

rampcode - 1 I -  
0 = not a ramp
1=ramp
2=”S” intersection
3=offshoot 

len3d -  - of segment in 3D   

func_class – 2 2 I – ODOT defined functional classification (i.e. major collector, etc.)
1= Interstate
2= Other Freeway and Expressways
3= Principal Arterial
4= Minor Arterial
5= Major Collector
6= Minor Collector
7= Local Roads

maintres – 2 2 I – maintenance responsibility of the centerline -
0=township/city/village
1=county
2=county maintained by others (i.e. border road maintained by bordering county)
3=state
4=railroad