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San Jose Traffic Signal Communications and Synchronization Project

San Jose Traffic Signal Communications and Synchronization Project. Presented by Ho Nguyen City of San Jose, Department of Transportation May 12, 2009. San Jose Traffic Signal Communication and Synchronization Project. Agenda. Background Project Benefits Safety Improvements

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San Jose Traffic Signal Communications and Synchronization Project

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  1. San Jose Traffic Signal Communications and Synchronization Project Presented by Ho Nguyen City of San Jose, Department of Transportation May 12, 2009

  2. San Jose Traffic Signal Communication and Synchronization Project Agenda • Background • Project Benefits • Safety Improvements • Operational Efficiencies • Capacity Improvement • Environmental Benefits • Deployment Strategy

  3. San Jose Traffic Signal Communication and Synchronization Project Agenda • Project Elements • Controller Replacement • Traffic Surveillance Cameras • Communication System • Dynamic Traffic Management Zones • Signal Coordination • Lessons learned

  4. San Jose Traffic Signal Communication and Synchronization Project Background • 10th largest city with over 1 million residents • Additional 324,000 residents by 2030 • Additional 200,000 jobs by 2030 • 1,160 freeway & 1,210 arterial lane miles • 900 traffic signals • Arterial operations critical to the movement of goods and people • Traffic Management System Upgrade Program vision

  5. San Jose Traffic Signal Communication and Synchronization Project Background • Recent Accomplishments Toward Vision • ATMS upgrade to support TCP/IP communication • Standardization of 2070 controller & firmware • Upgrade of 115 controllers along transit corridors • Transportation Incident Management Center design underway • $15M TLSP grant, $5M City match, 3 year delivery

  6. San Jose Traffic Signal Communication and Synchronization Project Project Benefits • Safety Improvements • Annual reduction of 180 vehicle crashes, $3.9M accident-related costs • Ped timing plans by TOD • Advance RR preemption • Operational Efficiencies • Provide timely response to maintenance and customer service requests • Congestion relief via remote monitoring with additional traffic surveillance cameras • Enhanced controller functionalities

  7. San Jose Traffic Signal Communication and Synchronization Project Project Benefits • Capacity Improvement • Transit signal operation, BRT and LRT • 604 signals along 60 corridors to be retimed • 2070 controller’s robust communication and ATSC features • Environmental Benefits • Reduced emissions by 99 tons annually of ROG, NOx, and weighted PM • Reduced fuel consumption: 625,000 gallons, $1.6M fuel costs • Reduced travel time and stops by 15% and 25%

  8. San Jose Traffic Signal Communication and Synchronization Project Deployment Strategy • Divide and conquer • Physical and logical network design • 7 phases, each phase mapped to distinct networks (VLANs) • Deployment order • Based on existing, physical SIC infrastructure to minimize construction costs • Order based on greatest level of congestion relief

  9. San Jose Traffic Signal Communication and Synchronization Project Deployment Strategy • Project Delivery • In-house procurement and installation • Leverage of Grants • Signal timing MTC RTSP & TFCA grants

  10. San Jose Traffic Signal Communication and Synchronization Project Project Elements • Controller Replacement • 785 new 2070LN controllers upgrade • TSP for LRT/BRT, predictive priority • Data key support, resulting in improved maintenance response times • Advance RR preemption support • Virtual controller software/suitcase tester • Robust communication system, supporting ATSC and minimizing comm server requirements

  11. San Jose Traffic Signal Communication and Synchronization Project Project Elements • 141 Traffic Surveillance Cameras • Signal head embedded cameras • PTZ cameras • IP encoders • Communications System Upgrade • Fiber communication trunk • 6 hub installations w/ 60-ft poles for wireless radio AP’s and FO pullbox upgrades • City installation of 36 miles of fiber cables

  12. San Jose Traffic Signal Communication and Synchronization Project Project Elements • Communications System Upgrade (cont.) • Field-hardened, fiber-based Ethernet switches • 660 EFM over Copper (EFMC) devices • Point-to-point wireless radios • Fault tolerance and redundancy • Microwave, 10 -80 GHz • WiFi Mesh/Point-to-Multipoint IP radios • To interconnect 270 currently non-communicating and leased-line intersections • License free or new 5.9 GHz ITS band

  13. San Jose Traffic Signal Communication and Synchronization Project Project Elements • Dynamic Traffic Management Zones • 7 areas • In-pavement detection systems • Signal Synchronization • 604 signals retimed along 60 major commute corridors • Funded through RSTP and TFCA grants

  14. San Jose Traffic Signal Communication and Synchronization Project Lessons Learned • Project Delivery • Cabinet Maintenance • Technology Selection • Fiber vs. wireless vs. copper (VDSL vs. SHDSL) • In-house Expertise • Motivated staff • Network training • Dedicated IT personnel

  15. San Jose Traffic Signal Communication and Synchronization Project Lessons Learned • 2070 Controller Hardware • Modularity introduces multiple points of failure • Long lead time • Data key is maintenance blessing • Controller Firmware Developer • Locality leads to successful controller deployment and integration • Future Opportunities • IP network currently used for CMS and PGS communications • Interconnect any IP enabled devices

  16. San Jose Traffic Signal Communication and Synchronization Project Questions Ho Nguyen, TLSP Project Manager ho.nguyen@sanjoseca.gov (408)975-3279 TLSP Web Site - http://www.sanjoseca.gov/transportation/TLSP_home.asp

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