Planning for Success: Applying Systems Engineering to ASCT Implementation

1. Planning for Success: Applying Systems Engineering to ASCT Implementation Eddie Curtis, P.E. Traffic Management & Operations Specialist FHWA Office of Operations & Resource Center

2. Benefits • Better • Benefits to Road Users & Agencies • Travel time reduction 13% - 50% • Fuel Consumption 8% - 38% • Ongoing performance measurement • Smarter • Solves problems that are difficult to address with time-of-day and traffic responsive • Saves cost of mundane data collection and retiming • Faster • Reduces retiming intervals from years to minutes

3. How does ASCT Work? d = d1(PF) + d2 + d3 Retiming Effort Do Nothing Delay Constant Monitoring & Fine Tuning (ASCT) Complaints Periodic Retiming Variability in Demand Source: City of Alpharetta

4. ASCT Deployment StatusMid 1980s – Dec 2010 Source: Aleksandar Stevanovic, Florida Atlantic University

5. What have we learned • Adaptive systems produce substantial benefits over coordinated TOD signal timing • Travel time, Delay, Emissions, • Congestion, Safety • Most effective where demand conditions are Variable and unpredictable • Linear Arterials, limited success within tight grids • Under Saturated

6. What we know about us 2005 2007 2012

7. Available Systems • QuicTrac • NWS Voyage • Multi-criteria Adaptive Control • ACDSS • Synchro Green • ACSLite • BALANCE • InSync • LA ATCS • MOTION • OPAC • RHODES • SCATS • SCOOT • UTOPIA

8. The Role of Systems Engineering

9. FHWA Model Document Process

10. States Engaging the Process • South Dakota • Massachusetts • Illinois • Idaho • Washington • Washington, DC • Arizona • Florida • Georgia • Meadowlands, NJ • Tennessee • Puerto Rico • Indiana • New Mexico • Pennsylvania • Alaska

11. Eddie Curtis, P.E. Traffic Management Specialist (404) 562-3920 eddie.curtis@dot.gov Support • http://ops.fhwa.dot.gov/arterial_mgmt/index.htm • FHWA Division Office