PASSER™ III-98

PASSER™ III-98 is a diamond interchange signal optimization program. The program can evaluate existing or proposed signalization strategies, determine signalization strategies that minimize the average delay per vehicle, and calculate signal timing plans for individual interchanges or up to 15 interconnected interchanges along one-way frontage roads. Three-phase, Four-phase (TTI-lead), Lead-Lead, Lead-Lag, Lag-Lead, and Lag-Lag phasing sequences can be analyzed using PASSER™ III-98. In addition, the program can evaluate the effectiveness of various geometric design alternatives, e.g., lane configurations, U-turn lanes, and channelization.

A slide presentation is available in Adobe Acrobat Reader format.

 

Animations

PASSER™ III-98 uses the traffic simulation model TexSIM to produce animations. TexSIM is not available for separate download.

Features

  • PASSER™ III-98 is designed for use on personal computers running Windows® 95 and Windows® 98.
  • This version of PASSER™ III comes with totally revamped input and output screens. The program not only allows the user to input data more easily but also provides a variety of on screen outputs in graphical and tabular form. The classic form of the input and output are also still generated.
  • For a given cycle length and phase sequence, a Rich Text Format (RTF) report with inputs and outputs can be generated by the click of a button. A timing plan is also generated that can be easily implemented in the field. The selected scenario can also be animated using the Tex Traffic Animation Module.
  • PASSER™ III-98 handles metric and US units.
  • The saturation flow rate module has been modified for this new version to be compatible with the 1997 Highway Capacity Manual.

Screen shots of Graphical User Interface

The System/Project Information screen displays information about the current project.

System and Project information screen.

 

Interchange/Turning Movements display graphically all traffic volumes at the interchange currently being analyzed.

Interchange and turning movements screen

 

System Summaries are provided in comprehensive tabular forms enabling faster analysis and optimization.

System summaries screen

 

PASSER™ III-98 also displays output in graphical format in a variety of styles which allow for high quality presentation.

Presentation of results as bar chart.

 

Availability

Information about availability of the product is located in the Technical Support section.

 

Algorithms and Techniques Utilized in PASSER III-98

The basic theory of the progression option of the PASSER™ III program was developed and tested by TTI in the Dallas Corridor Project sponsored by the Federal Highway Administration (1). PASSER™ III was adapted for off-line processing and analysis purposes in Highway Planning and Research (HPR) Project 165 (2), and a level-of-service evaluation for the approaches to an intersection was undertaken in HPR Project 203 (3). Both projects were sponsored by the Texas Department of Transportation (TxDOT). The optimization and evaluation portion of PASSER™ III was developed in HPR Project 178 (4), and the first version of the program was released in August 1977 (5). Since that time, experience gained by TxDOT personnel and other users have resulted in several modifications and/or improvements to the basic program. In response to these suggestions, enhanced versions of the program, PASSER™ III-80, PASSER™ III-84, were released in 1980 and 1984. The next step in this evolutionary process was PASSER™ III-88, a microcomputer environment based system for PASSER™ III, developed in 1988 (6).

References

1. "Dallas Corridor Study: Final Report." Report No. FHWA RD-77-15, Federal Highway Administration, U.S. Department Of Transportation, Washington, D.C., August 1976.

2. Messer, C.J., Haenel, H.E., and Koeppe, E.A. "A Report on the User's Manual for Progression Analysis and Signal Systems Evaluation Routine - PASSER II." Report No. FHWA/TX-74/165-14, Texas Transportation Institute, Texas A&M University, College Station, Texas, August 1974.

3. Messer, C.J., Fambro, D.B., and Anderson, D.A., "A Study of the Effects of Design and Operational Performance of Signal Systems: Final Report." Report No. FHWA/TX-75/203-2F, Texas Transportation Institute, Texas A&M University, College Station, Texas, August 1975.

4. Messer, C.J., Fambro, D.B., and Turner, M.J., "Analysis of Diamond Interchange Operation and Development of a Frontage Road Level of Service Evaluation Program - PASSER III: Final Report." Report No. FHWA/TX-76/178-2F, Texas Transportation Institute, Texas A&M University, College Station, Texas, August 1976.

5. Fambro, D.B., Putman, D.L., Haenal, H.E., Cervenka, LW., and Messer, C.J., "A Report on the User's Manual for Diamond Interchange Signalization : PASSER III: Final Report." Report No. FHWA/TX-76/178-1, Texas Transportation Institute, Texas A&M University, College Station, Texas, August 1976.

6. Fambro, D.B., Chaudhary, N.A., Messer, C.J., and Garza, R.U., "A Report on the User's Manual for the Microcomputer Version of PASSER III-88: Final Report." Report No. FHWA/TX-88/478-1, Texas Transportation Institute, Texas A&M University, College Station, Texas, September 1988.

 

 

 

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