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Peek ACS Lite Deployment Quixote Traffic Corporation Peter Ragsdale August 17, 2006

August 17, 2006. Presentation Overview. Deployment AreaImplementation ApproachPrevious Traffic SystemField Changes RequiredArchitectureIQ Connect? NTCIP TranslatorChallengesFuture DirectionsSummary. August 17, 2006. Deployment Area. Manatee County, FloridaState Route 70 in Bradenton FLAlso

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Peek ACS Lite Deployment Quixote Traffic Corporation Peter Ragsdale August 17, 2006

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    1. Peek – ACS Lite Deployment Quixote Traffic Corporation Peter Ragsdale August 17, 2006

    2. August 17, 2006 Presentation Overview Deployment Area Implementation Approach Previous Traffic System Field Changes Required Architecture IQ Connect™ NTCIP Translator Challenges Future Directions Summary

    3. August 17, 2006 Deployment Area Manatee County, Florida State Route 70 in Bradenton FL Also includes an intersection at US 301 and 51st Avenue ? Arterial has a turn included Nine Intersections total

    4. August 17, 2006 Implementation Approach - Previous Traffic System Peek 3000E Controllers Closed-loop CLMATS™ System Master/Local system 9600 Baud FSK dedicated communications Supports Upload, Download, Status Monitoring Detection mostly loops, one video system

    5. August 17, 2006 Implementation Approach - Field Changes Required Total = nine (9) harnesses, twenty-one (21) shelf mounted amplifiers and six (6) 2-channel loop detector cards Locate and split out loops at the following locations: Caruso Rd – Locate advanced loops for East and West (detectors 9-14) Natalie Way – Locate loops; split out phase 2/6 detectors 45th – Locate loops for 2/6; split out phase 6. 39th – Locate loops; split out East and West detectors 37th – Locate loops; split out phase 2/6 detectors. 33rd – Locate loops; split out phase 2/6 detectors. 30th – Split out phase 2/6 detectors. SR70 & US301 – Tie loop detectors for Phase 7 (7 & 15) together to free detector 15. Split N/S (2/6) detectors. Leave curb and center lanes tied together on phases 4/8; split out fast lane and wire into channels (phase 4) 17 and (phase 8) 18. US301 & 51st – Split out phase 2/6 detectors Installed 6 Peek Unitrak Video Detection Systems

    6. August 17, 2006 Implementation Approach - Architecture Converted to a “Master-less” System ACS-Lite Computer communicates directly to each controller Remote Access to ACS-Lite Computer available 9600 Baud FSK Multi-drop Communication System from ACS-Lite to Controllers All controllers are on one line Disconnected from previous CLMATS™ System Upload / Download available at intersections only Used IQ Connect™ NTCIP Translators

    7. August 17, 2006 Implementation Approach - Architecture

    8. August 17, 2006 Implementation Approach - IQ Connect™ NTCIP Translator Converts NTCIP Standard Objects to proprietary protocol of controllers Allows connection of non-NTCIP devices to an NTCIP-based system such as ACS-Lite Most ACS-Lite functionality developed within the Translator device Polls attached device using existing protocols for various status information, etc Facilitates migration of different controller types in the future since most work already completed Some minor work required in controller to generate new information required by ACS-Lite External version of IQ Connect™ used (internal now available)

    9. August 17, 2006 Challenges Translator / Controller Communications Heavy communications between translator and controller was not anticipated in original translator design Temporary Loss of Communications had negative effect Require to buffer and anticipate ACS-Lite communications ACS-Lite modified to provide “gaps” between “sets” Modified Proprietary Protocol to include mapping of additional System Sensor data Needed to generate new information regarding reason for vehicle and pedestrian demands Informing ACS-Lite of controller database changes

    10. August 17, 2006 Future Directions Support existing systems such as CLMATS™ concurrently with ACS-Lite Implementation of a “pass-thru” command within the translator Port the ACS-Lite algorithm to Linux and operate on an ATC-based Master controller Integrate ACS-Lite into a central system and operate it over Ethernet communications (currently supported by the translators) Port ACS-Lite version of translator to additional translators used for other Quixote family controllers Enhance ACS-Lite for Interval-based conrtollers

    11. August 17, 2006 Summary ACS-Lite is a cost-effective implementation of Adaptive Control Minimal additional detection when compared to other Adaptive Control Systems Minimal Field work required Reasonable number of controllers per communication line Depending on network, it may not require any changes Use of an NTCIP translator is a feasible and cost-effective approach to NTCIP and ACS-Lite

    12. August 17, 2006 Peek – ACS Lite Deployment Quixote Traffic Corporation Peter Ragsdale August 17, 2006

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