EP 1130-2-520
29 Nov 96
APPENDIX P
CODING PROCEDURES
P-1. General Coding Procedures.
a. In general the encoding procedure requires a detailed knowledge of the ports and
waterways of the U.S., both coastal and inland, including controlling depths of the statistical
stretches of each waterway. Skill is required to classify commodities and apply conversion factors
on unit weight provided by vessel operators.
b. The alphabetic information on the VORs is assigned code numbers: vessel, type, port,
dock, commodity, district, elements drafts, operator, service, and alternates. The numeric dates,
and net tons are not coded unless figures need to be rounded off.
c. Beginning with calendar year 1990 each data record is assigned a unique identification
number (ID). The ID consists of several items of information which enables one to determine the
date the VOR line item was coded, who coded the data line, and a sequence number that relates
to the original source document.
01 - Jan - 92 C JLD 001001
e.g. ID =
01 - Jan - 92: This is the date the line was coded
in ORACLE format
C:
Identifies the source of the coding
C
=
contractor
W
=
WCSC
0
=
Ohio River Division
F
=
Foreign (Census)
A
=
Automated Report
X
=
Other Sources
JLD:
Coded by Jane Lucille Doe
001001:
Sequence number that relates to original
source document
d. The data are entered into a data base for edit, review, analysis, and further processing.
P-2. Codes.
a. Corps of Engineers District Codes. Each Corps district is assigned a WCSC code which
is used in the processing of VORS. The statistics are compiled by Corps project and port areas and
sequenced within the publications by Corps districts. The district code is also part of the unique
operator code assigned by WCSC based upon the domicile of the vessel operating company.
These codes are defined below:
01
New England
21 Pittsburgh 35 Kansas City
03
New York
22 Buffalo
36 Seattle
P-1
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