TY - Abstract A1 - Khan, T A1 - Frey, H C A1 - Rastogi, N A1 - Wei, T T1 - Geospatial variation of real-world tailpipe emission rates for light-duty gasoline vehicles. Y1 - 2020// N1 - R834550 JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY VL - 54 SP - 8968–79 ER - TY - CONF A1 - Anya, A R A1 - Rouphail, N M A1 - Frey, H C A1 - Liu, B T1 - Method and case study for quantifying local emissions impacts of a transportation improvement project involving road re-alignment and conversion to a multi-lane roundabout. Y1 - 2013/01/13-17 N1 - R834550 SP - 13 EP - 5243 ER - TY - CONF A1 - Frey, H C A1 - Liu, B T1 - Development and evaluation of a simplified version of moves for coupling with a traffic simulation model. Y1 - 2013/01/22–26 N1 - R834550 SP - 13 EP - 1201 ER - TY - CONF A1 - Frey, H C A1 - Yazdani-Boroujeni, B A1 - Liu, B A1 - Hu, J A1 - Jiao, W T1 - Field measurements of 1996 to 2013 model year light duty gasoline vehicles. Y1 - 2013/06/25-28 N1 - R834550 SP - 951 EP - 961 ER - TY - CONF A1 - Frey, H C A1 - Yazdani-Boroujeni, B A1 - Hu, J A1 - Liu, B T1 - Measurement of cold starts and their contribution to real-world total trip emissions for light duty gasoline vehicles. Y1 - 2013/06/25-28 N1 - R834550 SP - 498 EP - 506 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Comparison of driving schedule project level MOVES emission factors to empirical data. Y1 - 2011/06/21-24 N1 - R834550 SP - 2445 EP - 2454 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Development and evaluation of a simplified version of MOVES for coupling with a traffic simulation model. Y1 - 2012/06/19-22 N1 - R834550 SP - 623 EP - 629 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Development of a simplified version of MOVES and application to iterative case studies. Y1 - 2013/06/25-28 N1 - R834550 SP - 530 EP - 537 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Estimating sensitivity of onroad vehicle emission factors to emission standards based on in-use measurement data. Y1 - 2014/06/24-27 N1 - R834550 ER - TY - CONF A1 - Taylor, J A1 - Zhou, X A1 - Rouphail, N M T1 - Calibrating time-dependent car-following models based on vehicle trajectory data: a dynamic time warping approach. Y1 - 2012/01/22-26 N1 - R834550 SP - 12 EP - 4575 ER - TY - CONF A1 - Zhou, X A1 - Lei, H A1 - Taylor, J A1 - Liu, B A1 - Rouphail, N M A1 - Frey, H C T1 - Integrating a simplified emission estimation model and mesoscopic dynamic traffic simulator to efficiently evaluate emission impacts of traffic management strategies. Y1 - 2014/01/12-16 N1 - R834550 SP - 14 EP - 4968 ER - TY - THES A1 - Swidan, H T1 - Integrating AIMSUN micro simulation model with Portable Emissions Measurement System (PEMS): calibration and validation case study. Y1 - 2011// N1 - R834550 ER - TY - JOUR A1 - Anya, A R A1 - Rouphail, N M A1 - Frey, H C A1 - Schroeder, B T1 - Application of AIMSUN microsimulation model to estimate emissions on signalized arterial corridors. Y1 - 2014/12/1 N1 - R834550 VL - 2428 IS - 2 SP - 75 EP - 86 ER - TY - JOUR A1 - Khan, T A1 - Frey, H C A1 - Rastogi, N A1 - Wei, T T1 - Geospatial variation of real-world tailpipe emission rates for light-duty gasoline vehicles. Y1 - 2020// N1 - R834550 JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY VL - 54 SP - 8968–79 ER - TY - JOUR A1 - Liu, B A1 - Frey, H C T1 - Variability in light-duty gasoline vehicle emission factors from trip-based real-world measurements. Y1 - 2015/10/20 N1 - R834550 JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY J1 - ENVIRON SCI TECHNOL J2 - Enviornmenal Research J3 - ENVIRONMENTAL SCIENCE & TECHNOLOGY VL - 49 IS - 20 SP - 12525 EP - 12534 ER - TY - JOUR A1 - Liu, B A1 - Frey, H C T1 - Measurement and evaluation of real-world speed and acceleration activity envelopes for light-duty vehicles. Y1 - 2015// N1 - R834550 JF - TRANSPORTATION RESEARCH RECORD J1 - TRANSPORT RES REC VL - 2503 SP - 128 EP - 136 ER - TY - JOUR A1 - Salamati, K A1 - Coelho, M C A1 - Fernandes, P J A1 - Rouphail, N M A1 - Frey, H C A1 - Bandeira, J T1 - Emissions estimation at multilane roundabouts: effects of movement and approach lane. Y1 - 2014/03/ N1 - R834550 VL - 2389 SP - 12 EP - 21 ER - TY - JOUR A1 - Taylor, J A1 - Zhou, X A1 - Rouphail, N M A1 - Porter, R J T1 - Method for investigating intradriver heterogeneity using vehicle trajectory data: a dynamic time warping approach. Y1 - 2015/03/ N1 - R834550 JF - TRANSPORTATION RESEARCH PART B-METHODOLOGICAL J1 - TRANSPORT RES B-METH VL - 73 SP - 59 EP - 80 ER - TY - JOUR A1 - Wei, T A1 - Frey, H C T1 - Intermodal comparison of tailpipe emission rates between transit buses and private vehicles for on-road passenger transport. Y1 - 2022// N1 - R834550 JF - ATMOSPHERIC ENVIRONMENT J1 - ATMOS ENVIRON J2 - Atmos.Environ. VL - 281 SP - 119141 ER - TY - JOUR A1 - Wei, T A1 - Frey, H C T1 - Sensitivity of light duty vehicle tailpipe emission rates from simplified portable emission measurement systems to variation in engine volumetric efficiency. N1 - R834550 JF - JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION ER - TY - JOUR A1 - Zhou, X A1 - Tanvir, S A1 - Lei, H A1 - Taylor, J A1 - Liu, B A1 - Rouphail, N M A1 - Frey, H C T1 - Integrating a simplified emission estimation model and mesoscopic dynamic traffic simulator to efficiently evaluate emission impacts of traffic management strategies. Y1 - 2015/06/ N1 - R834550 JF - TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT J1 - TRANSPORT RES D-TR E VL - 37 SP - 123 EP - 136 ER - TY - CONF A1 - Anya, A A1 - Rouphail, N A1 - Frey, C A1 - Schroeder, B T1 - Application of AIMSUN micro simulation model in estimating emissions on signalized arterial corridors. N1 - R834550 ER - TY - CONF A1 - Frey, H C A1 - Liu, B A1 - Rouphail, N A1 - Zhou, X A1 - Lei, H T1 - Development and evaluation of a simplified version of MOVES for coupling with a traffic simulation model. Y1 - 2013/02/14 N1 - R834550 ER - TY - CONF A1 - Frey, H C A1 - Rouphail, N A1 - Zhou, X A1 - Liu, B A1 - Lei, H A1 - Taylor, J A1 - Tanvir, S T1 - Framework for context-sensitive spatially-and temporally-resolved onroad mobile source emissions inventories. Y1 - 2014/03/5 N1 - R834550 ER - TY - CONF A1 - Frey, H C T1 - Measurement and modeling of real-world onroad vehicle activity and emissions. Y1 - 2014/05/9 N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H T1 - Comparison of driving schedule project level MOVES emission factors to empirical data. Y1 - 2011/06/21-24 N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Comparison of trends in MOVES and real-world emission factors for driving cycles, vehicle age, and road type. Y1 - 2012/03/25-28 N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H C A1 - Rouphail, N M A1 - Lei, H A1 - Zhou, X T1 - Development of a simplified version of moves and incorporation into a traffic simulation model. Y1 - 2013/04/7-10 N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H T1 - Development and evaluation of a simplified version of MOVES for coupling with a traffic simulation model. Y1 - 2013/01/13-17 N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Development and evaluation of a simplified version of MOVES for coupling with a traffic simulation model. N1 - R834550 ER - TY - CONF A1 - Liu, B A1 - Frey, H C T1 - Development of a simplified version of MOVES and application to iterative case studies. N1 - R834550 ER - TY - CONF A1 - Sandhu, G S A1 - Frey, H C T1 - Synchronization of portable emissions measurements systems data. Y1 - 2013/04/7-10 N1 - R834550 ER - TY - CONF A1 - Taylor, J A1 - Zhou, X A1 - Rouphail, N T1 - Calibrating time-dependent car-following models based on vehicle trajectory data: a dynamic time warping approach. Y1 - 2012/01/22-26 N1 - R834550 ER - TY - CONF A1 - Zhou, X A1 - Lei, H A1 - Taylor, J A1 - Liu, B A1 - Rouphail, N M A1 - Frey, H C T1 - Integrating a simplified emission estimation model and mesoscopic dynamic traffic simulator to efficiently evaluate emission impacts of traffic management strategies. N1 - R834550 ER -