1. Bearer Network Is Priority in ITS

2. 1 1970s-1990s Guarantee point-point transmission reliability Enhance reliability and flexibility of communication network Unified access and bearer data, voice and video services Ensure TDM services reliability, and meet IP services high bandwidth requirements Roadway services: tolling data ICT technology: PDH Roadway services: tolling data, office telephone ICT technology: SDH Roadway services: data, voice and video services ICT technology: MSTP Roadway services: data, voice TDM services; video, office and other IP services ICT technology: Hybrid MSTP 1990s-2000s 2000s-2010s Now Intelligent Transport Bearer Network Packet Is Imperative

3. 2 Monitor Center B Roadway Management Bureau Toll Station VMS Road Monitoring Traffic Volume, Events Detection PSTN/PLMN Toll Lane Monitoring Toll Booth Monitoring Toll Plaza Monitoring Emergency Phone Backbone Network Toll System 1. 155M caused bottlenecks 3. Manually identify traffic incidents Toll Station Monitor Center A 2. 10 terminals need 10 transceivers and 10 fibers, low resources usage Current System: Low Efficiency, High Maintenance Cost

4. 3 PSTN/PLMN Backbone Hybrid MSTP 1. STM-4 self-healing ring, 50 ms fast switching 2. Unified GPON access, one GPON fiber, 20+ terminals Customer Benefits Unified voice and video, 622 M bps High reliability: 99.999% One access saves fiber resources Intelligent detection saves 1/3 of incident handling time. Monitor Center B Toll Station VMS Toll Plaza Monitoring Toll System Toll Station Monitor Center A 4. Optimized key-frame storage saves 30% 3. Smart Identification improves efficiency by 30% Modernized System: Broadband, Convenience and High Reliability Road Monitoring Roadway Management Bureau Toll Booth Monitoring Toll Lane Monitoring Emergency Phone Traffic Volume, Events Detection

5. 4 Hybrid MSTP Transmission Network Emerged with More Reliability FE/485 Roadway Monitoring Center Regional Monitoring Center Intercom SCADA Server Provincial HMA Official Phone VMS STM-1/4 + GE/10GE STM-16/64 + 10GE Tolling Data Video Camera FXS/FXO/RS232/… FE E1/RS232/… FXO GE Router PBX NMS GE Router AR531 Traffic Detector Reliability & High Bandwidth TDM and packet services unified exchange 99.9999% reliability with ASON, failure recovery time (<50ms) 380KM ultra-long-distance, 40G high bandwidth Built-in PCM to directly access low-speed services

6. 5 Unified Exchange Unified Exchange TDM/ATM/EOS Ethernet TDM/ATM PWE3 EOD STM-N Ethernet VC1 VC2 VC3 SDH VC Tun1 Tun2 Tun3 Tunnel Free Bandwidth Soft and Hard Pipe Solution, Guarantee Services Quality and Transmission Efficiency TDM Hard Pipe SDH technology High quality, security, service physical isolation Packet Soft Pipe MPLS-TP technology Efficient data service bearer, QOS service flexible dispatching

7. 6 Brazil CCR rented 2437 km of highway communications network bandwidth to ISP and other enterprises Innovative profit model provided good ROI New Profit Model for CCR Highway Communications Network

8. 7 Hebei · China Accident-handling time saved 1/3 During Olympics, 980 real-time traffic information released Provided rescue service 108 times Command and dispatch, 36 times Jing-Qin Highway Informatization Guaranteed 2008 Beijing Olympics

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