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Titolo:
Conformity: How VMT-speed distributions can affect mobile emission inventories
Autore:
Ito, DT; Niemeier, D; Garry, G;
Indirizzi:
Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 & Environm Engn, Davis, CA 95616 USA Sacramento Council Govt, Sacramento, CA USA Sacramento Council Govt Sacramento CA USA uncil Govt, Sacramento, CA USA
Titolo Testata:
TRANSPORTATION
fascicolo: 4, volume: 28, anno: 2001,
pagine: 409 - 425
SICI:
0049-4488(2001)28:4<409:CHVDCA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Keywords:
air quality; conformity modeling; travel demand;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Niemeier, D Univ Calif Davis, Dept Civil & Environm Engn, 1 Shields Ave, Davis, CA 95616 USA Univ Calif Davis 1 Shields Ave Davis CA USA 95616 CA 95616 USA
Citazione:
D.T. Ito et al., "Conformity: How VMT-speed distributions can affect mobile emission inventories", TRANSPORTAT, 28(4), 2001, pp. 409-425

Abstract

Transportation conformity is a US regulatory process that requires that transportation modeling be integrated with air quality modeling. Consequently, every change to either modeling process is undertaken with great scrutinyby the regional governments, who have to use the models for demonstrating conformity. This paper explores the "trip versus link debate," which stems from the fact that the standard travel demand models used by most metropolitan planning organizations are primarily link oriented, while the air quality models have been primarily trip oriented. Using the Sacramento region weexamine the effects on mobile source emissions inventories when speed-VMT distributions are constructed using the trip and link-based philosophies. The results of our study indicate that trip-based VMT- speed distributions produce consistently lower emissions estimates than the link-based distributions. We use the results to assert that deciding between a trip-based or link-based conformity modeling process involves more than the technical difficulty of changes to the models or the potential political ramifications, itinvolves assessing which method will provide the most accurate estimates of regional motor vehicle emissions. We also examine ways to think about constructing mobile source emission inventories.

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Documento generato il 25/09/20 alle ore 12:34:58