Additional Resources NCHRP Report 693: Attracting, Recruiting, and Retaining Skilled Staff for Transportation System Operations and Management. Transportation Research Board, 2012. System Operations and Management Guidance. AASHTO, 2012. Accessible via http://www.aashtosomguidance.org Institutional Architectures to Improve Systems Operations and Management. [SHRP 2 Report S2-L06-RR-1] Transportation Research Board, 2012. Accessible via http://onlinepubs.trb.org/onlinepubs/shrp2/SHRP2_S2-L06-RR-1.pdf Model Systems Engineering Documents for Adaptive Signal Control Technology (ASCT) Systems. [FHWA‐HOP‐11‐027] Federal Highway Administration, Draft August 2011. 2011 Traffic Signal Operations Self Assessment. Washington DC: National Transportation Operations Coalition, 2011. Accessible via www.ite.org/selfassessment Bullock, Darcy M., Day, Christopher, M. et. al. “Architecture for Active Management of Geographically Distributed Signal Systems.” ITE Journal. May 2011. NCHRP Synthesis 403: Adaptive Traffic Control Systems: Domestic and Foreign State of Practice. Transportation Research Board, 2010. NCHRP Synthesis 409: Traffic Signal Retiming Practices in the United States. Transportation Research Board, 2010. NCHRP Synthesis 420: Operational and Institutional Agreements That Facilitate Regional Traffic Signal Operations. Transportation Research Board, 2010. Traffic Signal Operations and Maintenance Staffing Guidelines. [FHWA‐HOP‐09‐006] Federal Highway Administration, March 2009. Improving Traffic Signal Management and Operations: A Basic Service Model. [FHWA‐HOP‐09‐055] Federal Highway Administration, December 2009. Wasson, Jason S., Sturdevant, James R., and Bullock, Darcy M., “Real-Time Travel Time Estimates Using Media Access Control Address Matching.” ITE Journal. June 2008. Traffic Signal Audit Guide. Washington, DC, USA: National Transportation Operations Coalition, 2007. Benefits of Retiming Traffic Signals: An ITE Informational Report. Washington, DC, USA: Institute of Transportation Engineers (ITE), 2005. Tarnoff, Philip J. and Javier Ordonez. Signal Timing Practices and Procedures: State of the Practice. Washington, DC: ITE, 2004. Traffic Signals 101