Strong Concepts InfoQueue
Strong Concepts Newsletter Volume 9, Number 3 December, 1997


After comprehensive beta testing, the popular TEAPAC preprocessors PREPASSR, PRETRANSYT and PRENETSIM are now available as true Windows programs! TEAPAC users are now able to combine the proven performance of TEAPAC's preprocessors (PRETRANSYT has been in use for nearly twenty years; PREPASSR for nearly a decade) with the user friendliness of Windows. These programs now join WinSIGNAL94 as O/S platform choices for TEAPAC programs continue to expand! These new Windows versions of PREPASSR, PRE-TRANSYT and PRENETSIM which were first demonstrated at the Annual ITE Meeting in Boston are now shipping, and with their introduction, TEAPAC becomes the only suite of traffic operations programs available in the graphical Windows environment, and available for DOS as well! Supported platforms include Windows 95, Windows NT and Windows 3.x, as well as continuing support for DOS. This Windows implementation incorporates a unique new graphical user interface called the TEAPAC Visual Mode which makes the programs quite intuitive by using the familiar Windows environment to its fullest potential. WinSIGNAL94, WinPREPASSR, WinPRETRANSYT and WinPRENETSIM also retain the powerful Manual Mode for "power users". Combined with SIGNAL94's unique HCM-based signal timing and phasing optimizer, this makes WinTEAPAC an unmatched opportunity for signal timing optimization and evaluation using Windows since inputs to the preprocessors can also be read from each other or SIGNAL94 data files to avoid duplicate data input.

Each WinTEAPAC program includes context-sensitive help and a complete, on-line user guide with comprehensive search capabilities, even for Windows 3.x. Data files for these windows versions are compatible with previous DOS versions of all TEAPAC programs, including SITE for traffic impact studies, and are interchangeable between all operating system platforms. WinTEAPAC programs boast 2-3 times computing speed over their DOS counterparts. Also, the powerful and unique Control File feature of TEAPAC is still available, allowing continued use of WinTEAPAC for batch analyses which perform multi-scenario, multi-file computations with a single command.

The release of these three new Windows versions of the preprocessors is also accompanied by new releases of their DOS counterparts and a new version of SIGNAL94 (Windows and DOS) with an array of new features. In particular, PRENETSIM is now configured to recognize the new CORSIM program and export directly and run its new input formats, and PRETRANSYT and PREPASSR provide a simplified method for controlling the modeling of actuated signals. The SIGNAL94 update primarily contains a modified user interface to match the new Windows releases, and an improved on-line user manual.

WinTEAPAC programs are available from Strong Concepts for the same low price as the DOS versions, and DOS Licenses can be upgraded for a substantially reduced fee. Call Strong Concepts or visit our WWW web page at for specific pricing, and get on the road to using the most effective and efficient signal timing and analysis software suite.

WWW Internet Home Page

A vast amount of information about TEAPAC and Strong Concepts is available at our recently-updated World Wide Web home page on the Internet, located at

In particular, you might want to download a free demo of the new WinPREPASSR, WinPRETRANSYT and WinPRENETSIM programs and see what all the fuss is about, or check out the ever-popular WinSIGNAL94.

You can even join our mailing list here or send us E-mail ( Visit the new page and see the latest at Strong Concepts.

Boston ITE Delegates Win Big!

Four delegates at the ITE Annual Meeting in Boston came up big winners in the free software giveaway at the Strong Concepts exhibit booth, each winning a free, fully-licensed copy of their choice of TEAPAC software. The winners were:

One winner picked the new Windows version of PRETRANSYT as a uniquely powerful means to prepare TRANSYT-7F inputs in a reliable, error-free manner, with the added ability to read these data inputs directly from the SIGNAL94 program they already use extensively. Another picked the WinPRENETSIM program to perform the same type of input preparation effort for the complicated NETSIM/CORSIM program. A third picked the WARRANTS program as a way to conduct the tedious warrant analysis procedures for all of the volume-based warrants in the MUTCD. Given the unparalleled depth and breadth of the TEAPAC package of intergrated software, the last winner has yet to be able to choose!

Congratulations to all these winners, and good luck to everyone in next year's drawing. We expect to continue this annual event next August at the next ITE Annual Meeting in Toronto. See you there!

Courses Featuring TEAPAC

"Timing Traffic Signals Using TEAPAC, PASSER, TRANSYT and NETSIM/CORSIM" is a popular course which has a focus on specific solutions to signal timing and simulation problems from isolated intersections and arterials to diamond interchanges and grid systems. Hands-on work problems using the software mentioned provide the user with real experience applying these solutions with the only software system that integrates all of these programs into a single system of software. The TEAPAC programs used include the latest versions of SIGNAL94, NOSTOP, PREPASSR, PRETRANSYT and PRENETSIM, in addition to PASSER-II, TRANSYT-7F and TRAF-NETSIM/CORSIM.

This very popular three- and four-day course is next offered at the following locations:

The three-day course will be followed in Orlando February 26-27 by the two-day course "Advanced TEAPAC Application Techniques" which provides hands-on exercises for multi-file, multi-scenario analyses, batch analyses and comprehensive multi-program integration using TEAPAC and the above programs.

Call Strong Concepts at (847) 564-0386 for more course information and check our web page for future offerings. Dennis Strong, author of TEAPAC and Chairman of the Signalized Intersection subcommittee of the TRB HCM Highway Capacity Committee, is a primary instructor for all of these course.

You Can Find TEAPAC Anywhere

Of the seven continents of the world, active TEAPAC licenses are in use in all but one -- Can you guess which continent doesn't have a TEAPAC license? This widespread use is also reflected in usage in the United States, where TEAPAC has been licensed in all 50 states and is used by a majority of Departments of Transportation in the U.S.A. and Canada. This expansive usage is a testament to the proven power and usefulness of TEAPAC. Having stood the test of time for over 20 years, this suite of mature programs continues to be the most popular privately-developed traffic and transportation package worldwide. This is in part due to our highly-acclaimed support for the programs which our users tell us is second to none! We even provide support for other traffic software! If you are not yet a member of this group of TEAPAC users, call us now so we can get you on the road to unparalleled efficiency in your traffic analyses.

Strong Concepts
15 Timber Lane
Northbrook, Illinois U.S.A. 60062-3715
(847) 564-0386

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this page last updated 11 March, 2004