00647271

Component

http://onlinepubs.trb.org...trr/1993/1421/1421-011.pdf

https://scholar.google.co...sser&publication_year=1993

The development of PASSER IV, a practical state-of-the-art program for simultaneously optimizing progression bandwidth in multiarterial traffic signal networks, is described. PASSER IV is efficient and is being developed for use on personal computers. A user-friendly mouse-driven graphic interface that provides data entry and file management functions makes the program extremely easy to use. However, the main core of the program, written in FORTRAN 77 using structured programming techniques, is usable on virtually any type of computer. The existing version of PASSER IV determines all four signal timing parameters: cycle length, green split, offset, and phasing sequence. The program optimizes cycle lengths, offsets, and phasing sequences to maximize progression bandwidth. The green splits, however, are determined in a preprocessor using Webster's method. In addition, PASSER IV is capable of minimizing cycle length and can report signal timings for several alternative optimal solutions. Also described is ongoing research to enhance the capabilities of PASSER IV. This research includes optimization of green splits, optimization of two additional main-cross split (circular) phasing sequences, delay calculation procedure, and the capability to generate data files for TRANSYT 7F to facilitate fine-tuning of bandwidth solutions through bandwidth-constrained delay optimization. The final version of PASSER IV will be available in mid-1994.

This paper appears in Transportation Research Record No. 1421, Traffic Control Devices, Visibility, and Traffic Signal Systems. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01398730

English

Gartner, Nathan H; Little, John D C

p. 82-93

1993

Transportation Research Record

0309055741

Figures (6) ; References (39) ; Tables (5)

Bandwidth; Exclusive phasing; Future; Offsets (Traffic signal timing); Optimization; Personal computers; Research; Sequencing; Traffic signal timing

PASSER (Computer program); PASSER IV (Computer program)

Future research

Highways; Operations and Traffic Management; Research; I73: Traffic Control

TRIS, TRB

May 2 1994 12:00AM

• ANALYSIS OF FLASHING SIGNAL OPERATION
• DECISION SUPPORT SYSTEM FOR CONTROLLING TRAFFIC SIGNALS
• DEVELOPMENT OF AN EMERGENCY ZONE SIGN
• ENHANCEMENTS TO THE PASSER II-90 DELAY ESTIMATION PROCEDURES
• ENTRANCE ANGLE REQUIREMENTS FOR RETROREFLECTORIZED TRAFFIC SIGNS
• EVALUATION OF THE FEDERAL VISION STANDARD FOR COMMERCIAL MOTOR VEHICLE OPERATORS
• EXACT ROAD GEOMETRY OUTPUT PROGRAM FOR RETROREFLECTIVE ROAD SIGN PERFORMANCE
• HYBRID GENETIC ALGORITHM TO OPTIMIZE SIGNAL PHASING AND TIMING
• METHODOLOGY FOR EVALUATING TRAFFIC DETECTOR DESIGNS
• MICROSCOPIC SIMULATION MODELING OF MINIMUM THRESHOLDS WARRANTING INTERSECTION SIGNALIZATION
• OPERATIONAL COMPARISON OF LEADING AND LAGGING LEFT TURNS
• SELECTION CRITERIA FOR LEFT-TURN PHASING AND INDICATION SEQUENCE