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The dBASE format is designed for database management programs
such as Borland dBASE, Paradox, MS Access, Lotus Approach,
or Visual Basic. The database records consist of one rate
per record. For more about the dBASE record structure, see
the link above for downloading dBASE files.
Please Note: dBASE files
of rates are posted on the BNSF web site at the time the tariff
item is issued, rather than at the time the rates go into
effect. Only one version of an item's dBASE file is available
on our site at any point in time... the most recent revision
displacing the previous version. There is no Pending/Current
complement to the dBASE files. Consequently, users of this
data must carefully manage the date and timing issues. The
dBASE files include an 'effective' [firstday] and 'cancel'
[lastday] date field which can aid users in managing the timing
element of the data.
The dBASE files also include a filenumber field [FILENUM],
which can be used to link rate files to the tariff text files.
The filenumber is found on each tariff page in the bottom
right hand corner. A filenumber reads as follows: J=tariff
series letter; 123=traiff revision number; IG44=item revision
number preceided by the letters IG for Item Generation.
Note: Technical systems users may wish to do the following:
subtract one day from the effective date of newly issued rate
records and apply it to the 'cancel' date field of the previous
rate records, displacing the 12/31/1999 date. Then have
the application check the 'firstday', 'lastday' window of
rates with the system date.
Instructions
for downloading
BNSF 4022 dBASE files to your PC.
1. Select the rate item you need from the menu. Use
your mouse and click on the item number.
Technical Note: dBASE files are downloaded in binary
(zeros and ones) format using the File Transfer Protocol (FTP).
These files are not meaningful to your Internet browser. Most
browsers will check the file name extension and when binary
file types are received, they will bring up a SAVE AS... dialog
box. Some browsers may not know that a dBASE file (extension
'.dbf') is binary, and will attempt to display
the binary data on you screen. If you encounter this
problem, you will need to make a change in the 'MIME' setting
of your browser.
How to change the MIME type on Netscape
Navigator.
For questions or suggestions (complaints ??) about the use
or design of these files, call us at (817) 352-6789.
The 4022
dBASE record structure.
The 'dBASE'* format files which you download can be imported
by most spreadsheet and database management packages. Fields
included are:
- [ITEM] Item number
- [TYPE] Type of rate file... PP = Point-to-point; MS =
Mileage Scale; OL = Combination Item, origin leg; DL = Combination
Item, destination leg
- [STCC] Standard Transportation Commodity Code number
- [ROUTE] BNSF Ag Commodities Route code
- [NOTES] Reference Notes number used in printed item. Refers
to usage conditions in the item
- [OCITY] Origin station name
- [OSTATE] Origin station state
- [DCITY] Destination station name
- [DSTATE] Destination state name
- [LCARS] Low end of shipment carload size range
- [HCARS] High end of shipment carload size range
- [LMILES] Low end of mileage scale range, if applicable
(default=1)
- [HMILES] High end of mileage scale range, if applicable
(default=3000)
- [RATE] Rate amount in dollars per car
- [COLUMN] Column number where rate appears on rate book
pages
- [FILENUM] File number of this rate data. First letter
equals the rate book issue letter.
First number is the rate book revision number. Last four
characters are the item generation numbers. Example: J024IG03;
Rate is a part of the 'J' series of the 4022, and was generated
as part of the 24th rate book revision, and the third revision
of this item. The File Number is printed at the bottom right
hand corner of each rate item page.
- [FIRSTDAY] First day of which rate may apply. Date is
associated with revisions
- [LASTDAY] Last day of which rate may apply. Date is associated
with revisions
- [OROAD] Origin road initials
- [OOPSL] Origin Railway Station Number
- [DROAD] Destination road initials
- [DOPSL] Destination Railway Station Number
- [AUTH] Rate authority publication name.
Station Group
Files
When a group of railroad freight stations collectively take
the same rate, rate publications will frequently show
a 'group name' [GROUP 33999-01A] in the place where an origin
or destination station [SEATTLE] would appear. This publishing
practice saves space by eliminating the need for listing
each point in a station group where the rates are the same.
Group files are provided as reference data to support
the rate files. Group files contain all of the railroad station
names that a group name represents in a 4022 rate item.
There is only one station group file per item. However,
several station groups may be placed in one station group
file. Because not all 4022 rate items have station groups,
there may not be a station group file for each rate item.
Group files are posted on the BNSF web site as they
are issued, not at the time they become effective. Only one
version, the most recently revised, is present on the
BNSF web site at any given point in time. Previous files are
displaced by the most recently updated version. The station
group file is revised and reposted on the Internet whenever
the item is revised, even if the station groups for
the item have remained unchanged. Station Group files
are provided in the dBASE file format only. The structure
of the files are shown below.
- [ITEM] Tariff item number.
- [GROUP] Station group name i.e.. "GROUP 33999-01A"
- [CITY] Station name i.e.. "SEATTLE"
- [STATE] Station state abbreviation
- [ROAD] Road abbreviation letters
- [FILENUM] File number of the rate item data. A key
file for relational data joining. This number
helps insure that the group file belong to the correct rate
file.
Sample data is listed below.
33999 GROUP 33999-01A SEATTLE WA BNSF I123IG01
33999 GROUP 33999-01A TACOMA WA BNSF I123IG01
33999 GROUP 33999-01A LONGVIEW WA BNSF I123IG01
33999 GROUP 33999-02A PORTLAND WA BNSF I123IG01
33999 GROUP 33999-02A VANCOUVER WA BNSF I123IG01
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