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Christopher Day

TITLE

Affiliate Researcher

PHONE

515-294-2140

EMAIL

cmday@iastate.edu

ADDITIONAL ROLES

Assistant Professor, Department of Civil, Construction, and Environmental Engineering

AFFILIATIONS

InTrans, CTRE, REACTOR

About Christopher

Dr. Day is an affiliate researcher with the Center for Transportation Research and Education. His research focuses research focuses on transportation operations, traffic control, and performance measures for highway transportation systems. The products of Dr. Day’s previous research on performance measures for traffic signal systems have seen widespread implementation in practice and were a past focus technology in the Federal Highway Administration’s Every Day Counts program and has been adopted by most traffic control equipment vendors in the US. 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.

 

Background


Dr. Day is an assistant 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. Dr. Day received his doctorate in civil engineering from Purdue in 2010, and is a registered professional engineer in the State of Indiana. Dr. Day is a member of the TRB Standing Committee on Traffic Signal Systems (AHB25) and is a member of the Institute of Transportation Engineers and American Society of Civil Engineers.

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

Professional Experience


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

Selected Research


  • Data-Driven Identification of Candidates for Operational Improvement, Iowa DOT, 2019-2021
  • Evaluating the Performance of Right-Turn-on-Red Operation at Signalized Intersections, NCHRP 03-136 in partnership with raSmith and QualityCounts, LLC, 2019–2021
  • Identifying the Performance Potential for Intersection Control using Advanced Infrastructure Sensing. Department of Energy, 2019–2020
  • Evaluating ATSC Operations for Dodge Street Corridor, Nebraska DOT, 2019–2021
  • Portable Road User Safety Lighting for Work Zones, Smart Work Zone Deployment Initiative, 2019–2020
  • Objectives and Performance Based Management of Traffic Signal Operations, DTFH61-16-D-00063, Federal Highway Administration, in partnership with Leidos, Inc.
  • Automated Traffic Signal performance Measures Pilot Implementation, Iowa DOT, 2018–2020
  • In-Service Evaluation of Culvert Extensions, Iowa DOT, 2017–2019
  • In-Service Evaluation of Railroad Signal and Stop Arm Pole Protection, Iowa DOT, 2017–2019
  • Evaluation of Speed Limit Policy Impacts on Iowa Highways, Iowa DOT, 2017–2019

Selected Publications


  • 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. 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.
  • Brennan, T. M., C. M. Day, and M. Volovski. 2018. Ranking statistically similar highway travel corridors using speed data sets. Infrastructure Asset Management, Vol. 5, pp. 96–104.
  • 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.
  • Day, C. M. and D. M. Bullock. 2017. Investigation of self-organizing traffic signal control with graphical signal performance measures. Transportation Research Record: Journal of the Transportation Research Board, No. 2620, pp. 69–82.
  • Day, C. M. and D. M. Bullock. 2016. Cycle length strategies for a diverging diamond interchange in a signalized arterial. Journal of Transportation Engineering, Vol. 142.
  • Day, C. M. and D. M. Bullock. 2016. Opportunities for detector-free signal optimization with limited connected vehicle market penetration: a proof-of-concept study. Transportation Research Record: Journal of the Transportation Research Board, No. 2558, pp. 54–65.
  • Lavrenz, S. M., C. M. Day, J. Grossman, R. Freije, and D. M. Bullock. 2016. Use of high-resolution signal controller data to identify red light running. Transportation Research Record: Journal of the Transportation Research Board, 2558, pp. 41–53.

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)
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