The construction of signpost colors involves the following Shapefiles:
- sg - Signpost information
- axav - Extended Attribute table for Composite Attributes
- axas - Extended Attribute table for Composite Attributes
sg
This file provides the link (via the sg.COLINF field).from the signpost information table to the axav file (via the axav.ATT_VALUE field).
axav and axas
The axav.ATT_VALUE field in the AXAV file links the specific sign identified in the sg file to the SPCP ID and attribute components in the axas file via the axav.ATTVAL_ID and axas.ATTVAL_ID fields.
Sign color attribute IDs provided in the axas file (also in the axas. ATTVAL_ID field)
link back to the axav file and the attribute values for each attribute
(axav.ATT_VALUE).
Figure: Sign Color Information in Shapefile