Ordering the CDI Software [goto top]

Complete the Registration/Order form and check the order checkbox to order the CDI software. The software will be delivered electronically. Users will be able to access a support page to obtain upgrades and related support.

CDITract Software [goto top]

The CDITract software is a specialized version of CDI. CDITract is not a demo. Use CDITract to generate a Census 2000 statewide census tract database using any set of state Summary File 1 dbase files. There is no fee to use the CDITract software but users must register to download the software and review the disclaimer of warranty.

Register first and then download the CDITract software. If you do not have a set of Summary File 1 data in dbase structure, you can use the Hawaii selected segments files. Download and expand this file into the folder c:\sf1\hi).

To Use CDITract, follow these steps:

1. Expand the cditract.zip file to the folder c:\cditract.
2. Start cditract.exe.
3. Using options, choose set default values.
4. Change options settings to use DC rather than DE.
5. Close options form.
6. On main menu choose SF Process and then SF1 Tract.
7. At the prompt, key in the name C11140 and Open.

You may use census tract data files developed using the CDITract software for any purpose. The structure of the file generated is shown in dp2000e.htm

Disclaimer of Warranty. The CDITract software is provided on an "AS IS" basis, without warranty of any kind, including without limitation the warranties of software and/or files being free of defects, merchantable, fit for a particular purpose or non-infringing. The entire risk as to the quality and performance of the software and/or files is borne by you. Should the software or a file be defective in any respect, you alone agree to assume the entire risk and responsibility associated with use of the software and/or file and/or its contents. In addition, the process of acquiring files via the Internet is inherently risky and the entire risk associated with data transfer is borne by you.

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DP2000E File Downloads. Download no-fee production databases, generated by CDI, at http://proximityone.com/dp2000e.htm. These statewide census tract summary files may be used to develop the content contained in the Census Bureau demographic profiles. More than this, these files include single year of age data and other items useful for producing census tract level demographic estimates.

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CDI and School District Applications. School district summary data are not provided in the Census Bureau Summary File 1 (SF1) files. However, you can use CDI to develop school district summary data. To do this, you first create a census block CDI integrated data file. This file can contain a standardized pre-selected set of data or you can select any set of SF1 items (other than PCT tables which were not summarized at the block level). Next use the CDI Aggregate feature to aggregate the block level data to school district summary records. A school district summary file is generated that you can use directly with a wide range of software.

To demonstrate this process, the State of Washington SF1 has been used to develop the following thematic map of the Seattle, WA area (King County). This map shows characteristics of secondary school districts in King County. A similar process could have been used to develop thematic maps of county by elementary school district or county by unified school district.

Developing the map involves the following simple steps. The King County by school district map boundary file was downloaded (free from Proximity at http://proximityone.com/maps2000.htm). The Proximity Cen2Shp software was then used to integrate the Kings County shapefile dbf with the CDI school district summary file. The map was then displayed by opening/using a single shapefile with the ESRI ArcView software. Other mapping software could also be used to obtain similar results. The integrated King County school district shapefile file set (including the integrated dbf) may be downloaded as a zip file for review/further use.

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CDI and Traffic Analysis Zone Applications. Summary data for traffic analysis zones are not provided in the Census Bureau Summary File 1 (SF1) files. However, you can use CDI to develop traffic analysis zone summary data. To do this, you first create a census block CDI integrated data file. This file can contain a standardized pre-selected set of data or you can select any set of SF1 items (other than PCT tables which were not summarized at the block level). Next use the CDI Aggregate feature to aggregate the block level data to traffic analysis zone summary records. A traffic analysis zone summary file is generated that you can use directly with a wide range of software.

To demonstrate this process, the State of Washington SF1 is used with CDI to develop the following traffic analysis zone thematic map of the Seattle, WA area (King County).