Intelligent Transportation Trends chpt.2 - System Management
The term Intelligent Transportation Systems (ITS) was coined over two decades ago to designate applications of information and communication technologies to the operational management of transportation networks. The main promise of ITS has been very consistent over that period: network capacity can be freed up by optimizing traffic controls and empowering users with accurate travel information. It can be debated how much faith practitioners and policy makers have placed in technology by investing their resources, as well as the extent to which Intelligent Transportation Systems have delivered on their promise. However, there is no question that steady and sometimes spectacular advances in computing technologies and usage trickle down to transportation applications in important ways. As a result, new products and services emerge continuously. They include systems that address the direct needs of networks managers, as well as others that are developed in tangential markets (e.g. automotive) or even through non-market mechanisms (e.g. many mobile web applications). This talk presentation reviews major trends in information and communication technologies and demonstrate how each of them is driving innovative transportation services. We attempt to envision how those trends might develop in the future, so that we can finally examine some of their implications for travel demand and network management. There lie both challenges and opportunities for transportation engineers and planners, but either way, profound changes appear inevitable.
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Intelligent Transportation Trends chpt.2 - System Management
- 1. Intelligent Transportation J.D. Margulici Trends and Perspectives jdm@novavia.us 2011 www.novaviasolutions.com Chapter 2: System Management Note to copyright owners: all third-party materials contained in this presentation were obtained from publicly available sources. However, they are reproduced here without explicit permission from their owners. Novavia Solutions will gladly remove any such material at the owner’s request.
- 2. ITS primer and brief history Intelligent Transportation State of the art: system management Trends and Perspectives 2011 Information technology trends Prospective and implications J.D. Margulici jdm@novavia.us www.novaviasolutions.com
- 3. New Foundations: System Management ITS Trends and Perspectives - April 2011 3
- 4. Networks System Management in the 21st C. Demand Traffic Flow Travel Incident Management Management Information Management • Integrated Pricing • Signals, Ramp Meters • All Modes • Detection & Clearing • Vehicle Occupancy • Variable Speeds • Everywhere • Resilient Networks • Parking Policies • Dynamic Routing & • Anytime • Traffic Adaptation Lane Assignments Smooth operations: information, control and demand management squeeze out traffic variability Time is money: individuals make their own trade-offs between time and price Driven by success: Infrastructure planning is based on objective operational performance SMARTER, GREENER, CHEAPER ITS Trends and Perspectives - April 2011 4
- 5. Potential Pay-Off in one Picture… 80 2,000 70 I-405 SB 1,750 Postmile 31.93 Vehicles per Hour per Lane (vphpl) Los Angeles 60 10/19/2001 1,500 Lost Productivity 50 1,250 Speed 40 1,000 30 750 20 As speeds drop, flow rates diminish significantly 500 10 250 0 0 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM Time of Day Source: Performance Measurement System (PeMS) – October 2001 / Systems Metrics Group Vphpl: volume per lane per hour ITS Trends and Perspectives - April 2011 5
- 6. Active Traffic Management: Premises Policy Loop Traffic Policies Outcomes Flows Deploy Control Measure Analyze Tactical Loop Assess Strategic Loop Design ITS Trends and Perspectives - April 2011 6
- 7. Active Traffic Management: Implementation Australia’s Eastern Freeway ITS Trends and Perspectives - April 2011 7
- 8. Integrated Corridor Concept: I-80 Surveillance and Monitoring Adaptive Ramp Metering Traveler Information system Incident Management system Arterial and Transit Management systems Variable Speed Limit signs Potential Hard Shoulder Running Commercial Vehicle Operation system ITS Trends and Perspectives - April 2011 8
- 9. Corridor Management Plans Base Performance Assessment (PeMS, TASAS, Other) Bottleneck Identification (HICOMP, PeMS, Aerial Photographs, CHP Logs, Other) Future Planned, Performance Improvement Programmed and (Micro-Simulation, Scenarios other Regional Models) Improvements Scenario Performance Evaluation (Micro and Meso Models) Recommendations and Performance Improvement Estimates ITS Trends and Perspectives - April 2011 9
- 10. Bay Area Performance-Based Planning & Programming ITS Trends and Perspectives - April 2011 10
- 11. Road User Charges – Price Discrimination ITS Trends and Perspectives - April 2011 11
- 12. Cordon Pricing ITS Trends and Perspectives - April 2011 12
- 13. San Francisco’s Transportation Pricing AM/PM Cordon PM-Only Cordon ITS Trends and Perspectives - April 2011 13
- 14. Intelligent Transportation J.D. Margulici Trends and Perspectives jdm@novavia.us 2011 www.novaviasolutions.com Next is Chapter 3: Traffic Monitoring