TY  - JOUR
A1  - Frey, H C
A1  - Rouphail, N M
A1  - Zhai, H 
T1  - Link-based emission factors for heavy-duty diesel trucks based on real-world data.
Y1  - 2008/11/10
N1  - R831835
JF  - TRANSPORTATION RESEARCH RECORD:JOURNAL OF THE TRANSPORTATION RESEARCH BOARD
VL  - 2058
SP  - 23
EP  - 32
PB  - Transportation Research Board
ER  - 


TY  - JOUR
A1  - Frey, H C
A1  - Zhai, H 
A1  - Rouphail, N M
T1  - Regional on-road vehicle running emissions modeling and evaluation for conventional and alternative vehicle technologies.
Y1  - 2009/11/1
N1  - R831835
JF  - ENVIRONMENTAL SCIENCE & TECHNOLOGY
VL  - 43
IS  - 21
SP  - 8449
EP  - 8455
ER  - 


TY  - JOUR
A1  - Shay, E 
A1  - Rodriguez, D A
A1  - Cho, G 
A1  - Clifton, K J
A1  - Evenson, K R
T1  - Comparing objective measures of environmental supports for pedestrian travel in adults.
Y1  - 2009/11/19
N1  - R831835
JF  - INTERNATIONAL JOURNAL OF HEALTH GEOGRAPHICS
VL  - 8
SP  - 62 (12 pp.)
ER  - 


TY  - JOUR
A1  - Shay, E 
A1  - Khattak, A J
T1  - Household travel decision chains: residential environment, automobile ownership, trips and mode choice.
Y1  - 2011/05/
N1  - R831835
JF  - INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION
VL  - 6
IS  - 2
SP  - 88
EP  - 110
ER  - 


TY  - JOUR
A1  - Zhai, H 
A1  - Frey, H C
A1  - Rouphail, N M
T1  - Development of a modal emissions model for a hybrid electric vehicle.
Y1  - 2011/08/
N1  - R831835
JF  - TRANSPORTATION RESEARCH PART D:TRANSPORT AND ENVIRONMENT
VL  - 16
IS  - 6
SP  - 444
EP  - 450
ER  - 


TY  - CONF
A1  - Cho, E J
A1  - Rodriguez, D A
A1  - Song, Y 
T1  - The role of employment sub-centers and the built environment in residential location decisions.
Y1  - 2007/10/
N1  - R831835
ER  - 


TY  - CONF
A1  - Coelho, M C
A1  - Zhai, H 
A1  - Frey, H C
A1  - Rouphail, N M
T1  - Comparing fuel consumption and emissions from on-board measurements and numerical models.
Y1  - 2007/03/
N1  - R831835
ER  - 


TY  - CONF
A1  - Zhai, H 
A1  - Frey, H C
A1  - Rouphail, N M
T1  - Impact of alternative vehicle technologies on measured vehicle emissions.
Y1  - 2007/07/
N1  - R831835
ER  - 


TY  - CONF
A1  - Zhai, H 
A1  - Frey, H C
A1  - Rouphail, N M
T1  - Methodology development for modal fuel use and emissions rate model for a hybrid electric vehicle.
Y1  - 2007/03/
N1  - R831835
ER  - 


TY  - CONF
A1  - Zhai, H 
A1  - Frey, H C
A1  - Rouphail, N M
A1  - Farias, T L
A1  - Gonçalves, G A
T1  - Fuel consumption and emissions comparisons between ethanol 85 and gasoline fuels for flexible fuel vehicles.
Y1  - 2007/06/
N1  - R831835
ER  -