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Christopher Day

TITLE

Research Scientist, CTRE

PHONE

515-294-3015

EMAIL

cmday@iastate.edu

ADDITIONAL ROLES

Associate Professor, Department of Civil, Construction and Environmental Engineering

AFFILIATIONS

InTrans, CTRE, REACTOR

About Christopher

Dr. Christopher Day is an associate professor in the Department of Civil, Construction and Environmental Engineering at Iowa State University. Dr. Day’s research focuses on transportation operations, traffic control, and performance measures for highway transportation systems. The products of his previous research have seen widespread implementation in practice. Dr. Day’s work on Automated Traffic Signal Performance Measures has been selected as a focus technology by the Federal Highway Administration’s Every Day Counts program. The supporting data collection technology has been implemented by most traffic signal controller manufacturers and is currently used at thousands of intersections in the US and Canada. Dr. Day’s current research explores advanced applications of enhanced data from connected vehicles and advanced sensors to traffic control and optimization, including use of vehicle trajectory data for performance measurement and real-time control.

 

Education


  • PhD, Civil Engineering, Purdue University, West Lafayette, IN
  • MS, Civil Engineering, Purdue University, West Lafayette, IN
  • MS, Physics, Ball State University, Muncie, IN
  • BS, Physics, Ball State University, Muncie, IN

Certifications


  • Professional Engineer (PE) License, State of Indiana

Professional Experience


  • Associate Professor, Department of Civil, Construction and Environmental Engineering, Iowa State University, Ames, IA, 2023–present
  • Assistant Professor, Department of Civil, Construction and Environmental Engineering, Iowa State University, Ames, IA, 2017–2023
  • Senior Research Scientist, Purdue University, West Lafayette, IN, 2010–2017

Selected Publications


  • Emtenan, A. M. T., and C. M. Day. 2021. Impact of Turning Lane Storage Length and Turning Proportions on Throughput at Oversaturated Signalized Intersections. Transportation Research Record: Journal of the Transportation Research Board.
  • Singleton, P. A., M. Taylor, C. M. Day, S. Poddar, S. Kothuri, and A. Sharma. 2021. Impact of COVID-19 on Traffic Signal Systems: A Survey of Agency Interventions and Observed Changes in Pedestrian Activity. Accepted for publication in the Transportation Research Record: Journal of the Transportation Research Board.
  • Chawla, H., M. U. Megat-Johari, P. T. Savolainen, and C. M. Day. 2020. Evaluation of Strategies to Mitigate Culvert-Involved Crashes. Transportation Research Record: Journal of the Transportation Research Board. DOI: 10.1177/0361198121992070.
  • Day, C. M., and A. M. T. Emtenan. 2019. Impact of phase sequence on cycle length resonance. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2673, No. 11, pp. 398–408.
  • Day, C. M., and D. M. Bullock. 2019. Optimization of traffic signal offsets with high-resolution event data. Journal of Transportation Engineering, Vol. 146.
  • Day, C. M., and A. M. T. Emtenan. 2019. Trajektorienbasierte Leistungskennzahlen für Anlagen mit gestörtem Verkehrsfluss. (“Trajectory-Based Performance Measures for Interrupted-Flow Facilities”). Straßenverkehrstechnik, Vol. 63, No. 8.
  • Remias, S. M., C. M. Day, J. Waddell, J. Kirsch, and T. Trepanier. 2018. Evaluating the performance of coordinated signal timing: a comparison of common data types with connected vehicle data. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2672, No. 18, pp. 128–142.
  • Day, C. M., H. Li, L. Richardson, J. Howard, T. Platte, and D. M. Bullock. 2017. Detector-free optimization of traffic signal offset with connected vehicle data. Transportation Research Record: Journal of the Transportation Research Board, No. 2620, pp. 54–68.

Professional Affiliations


  • Transportation Research Board (TRB): Member and Research Coordinator, TRB Committee AHB25 – Traffic Signal Systems
  • American Society of Civil Engineers (ASCE)
  • Institute of Transportation Engineers (ITE)

Completed Research


In-Progress Research


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