RSICC no longer distributes MACCS or SECPOP. If you are interested in obtaining MACCS or SECPOP, please address your request to Carlos Navarro [Carlos.Navarro@nrc.gov] of the US Nuclear Regulatory Commission (NRC).

1. NAME AND TITLE

SECPOP90: Code System for Sector Population, Land Fraction and Economic Estimation.

2. CONTRIBUTOR

Sandia National Labs., Albuquerque, New Mexico.

3. CODING LANGUAGE AND COMPUTER

Visual Basic, FORTRAN, dBase, QuickBasic, Excel, Access; IBMPC (P00378IBMPC00).

4. NATURE OF PROBLEM SOLVED

In 1973 Mr. W. Athey of the Environmental Protection Agency wrote a computer program called SECPOP which calculated population estimates. Since that time, two things have changed which suggested the need for upgrading the original program, more recent population censuses and the widespread use of persona computers (PCs). The revised computer program uses the 1990 and 1992 Population Census information and runs on current PCs as SECPOP90. SECPOP90 consists of two parts: site and regional. The site analysis provides population and economic data estimates for any location within the continental United States. Siting analysis is relatively fast running. The regional portion assesses site availability for different siting policy decisions; i.e., the impact of available sites given specific population density criteria within the continental United States. Regional analysis is slow.

5. METHOD OF SOLUTION

The SECPOP90 code uses the 1990 block-level census data to calculate the population counts for each of the user defined MACCS grid (rosette) sections, and 1990 county-level census data to calculate economic data.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

The running times of calculations are data dependent. Depending on the size of the circles and the size of the input map, regional calculations can last from minutes to days.

8. COMPUTER HARDWARE REQUIREMENTS

IBM PS/2, IBM PC/AT or compatible. IBM PC-DOS 5.0, Microsoft MS-DOS 5.0 or compatible; Intel 80386, or compatible CPU; 620 kilobytes of available conventional RAM, 512 kilobytes expanded RAM; one CD rom drive; hard disk with 81 megabytes free (minimum to load programs, 100 megabytes recommended); VGA monitor, or compatible; and a Microsoft-compatible mouse (recommended, but not required).

9. COMPUTER SOFTWARE REQUIREMENTS

MS-DOS 5.0 or higher. Programs will also run in DOS window under Windows.

10. REFERENCE

S. L. Humphreys, J. A. Rollstin, and J. N. Ridgely, "SECPOP90: Sector Population, Land Fraction, and Economic Estimation Program," NUREG/CR-6525 (SAND93-4032) (July 1997).

11. CONTENTS OF CODE PACKAGE

Included in the package are the referenced document and one CD rom which has a readme file giving instructions about loading the program. Also included are executables and directories with Census data, site data, and plotting data.

12. DATE OF ABSTRACT

January 1999.

KEYWORDS: REACTOR SITING; POPULATION; ECONOMICS