Www.ptvamerica.com Software In The Loop Applications for VISSIM TRB Traffic Signal Systems Committee – Simulation Subcommittee Kiel Ova, P.E., PTOE.

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Presentation transcript:

Software In The Loop Applications for VISSIM TRB Traffic Signal Systems Committee – Simulation Subcommittee Kiel Ova, P.E., PTOE

© PTV America Traffic Signal Controllers NEMA > Econolite ASC/2 (now ASC/3) > Eagle EPAC300 (now M50) > PEEK LMD 9200 > NAZTEC Type 170 > Wapiti > BI Tran Systems > Caltrans C8 Type 2070 > Siemens Nextphase > VS-PLUS Interval > Peek LMD 40 > Wapiti SCATS Fortran Fastracs … and many more!

© PTV America Software-in-the-Loop Controllers Concept > Replaces hardware-in-the-loop > Same logic as firmware > Virtual time clock and calendar > Timing parameter database exchange with field controllers > Commercial signal control firmware interfaces directly with VISSIM’s Signal Controller API

© PTV America Software-in-the-Loop Controllers Motivation > Error/bias due to improper emulation (TSP, Coordination, etc) > Faster than real time > Synchronization > No hardware required Disadvantages > More communication overhead than VISSIM’s embedded controller > No data exchange with other controllers (future NTCIP compliant) > No import from signal optimization tools (future development)

© PTV America VISSIM’s SIL Applications Available SIL controllers: > NEMA Controller (PTV) > Fourth Dimension D4 > VS-PLUS > SCATS > Econolite ASC/3

© PTV America Fourth Dimension D4

© PTV America Econolite ASC/3

© PTV America Econolite ASC/3 Controller > 16 Phases/16 Overlaps > 16 Ped Phases/16 Ped Overlaps > 4 Rings > 64 Detectors > Phase Compatibility Matrix > Logic Processors – Emulate External Logic/PLC > Coordination/Preempt > NTCIP 1202 Compliance

© PTV America ASC/3 SIL Controller – Database Editor > icons™ >.db is transferred between VISSIM and ASC/3 controller (hardware) via NTCIP Database Manager

© PTV America ASC/3 SIL Controller – Front Panel Display > ASC/3 Menu Structure > Online Controller Status > Detector Status > Real-time Database Update

© PTV America ASC/3 SIL Controller – Logic Processing

© PTV America ASC/3 SIL Controller – I/O Mapping

© PTV America Summary Current Status: > Ready for field application Future Work: > ASC/3 Transit Signal Priority Implementation > GA Based optimization of signal timing parameters

© PTV America PTV – First Class Transportation.