Shenandoah Software

Download IndMan Version 6 and 

OPSig Database files.

This page last updated: August 04, 2017 

Click To Download SetupIndMan.exe now.  Version 6.1.1, Build June 8th, 2010

When you get the File Download - Security Warning window, click RUN to install immediately or

SAVE to save this install file on your computer.

This program is Freeware. You may distribute it to others.

The OpSig files files included are:

1. OPSigEST.txt - 9,802 prototype industries in Eastern USA.

            States: CT, DC, DE, MA, MD, ME, MI, NH, NJ, NY, PA, RI, VT

2. OPSigSTH.txt - 10,611 prototype industries in the Southern USA

            States: AL, AR, FL, GA, KS, KY, LA, MK, MO, MS, NC, OK, SC, TN, TX, VA, WV

3. OPSigMWC.txt - 11,062 prototype industries in the Mid West and Central USA.

            States: IA, IL, IN, MN, ND, NE, OH, SD, WI, 

4. OPSigWST.txt - 7,989 Prototype industries in the western USA , Canada, Mexico

            States: AZ, CA, CO, ID, MT, NM, NV, OR, UT, WA, WY, Provs: all

5. OpSigCondensed.txt - 18,000  industries extracted from the above four files to give a good sampling across North America in a single file. This file is useful for making Waybills.

6. OfficialGuide.txt - various model railroad interchange points.

7. InputOutputs.txt - typical receipts and shipments for selected businesses.

Our thanks to Jerry Britton (Email: who has compiled a list of actual Prototype industries served by the Pennsylvania Railroad. You can use these in the IndMan program by downloading them at his web site at:

and reading them into the IndMan program.