00743727

Component

https://doi.org/10.3141/1587-14

http://scholar.google.com...rell&publication_year=1997

Nonattainment areas taking advantage of EPA's modified enforcement of the 1990 Clean Air Act mandates for unpopular emissions control measures will be required to identify alternative measures to reduce emissions, and several areas have indicated their intention to implement scrappage programs for older vehicles as a means of "replacing" the emissions reductions originally expected to result from these other measures. The potential reductions in fleetwide motor vehicle emissions from scrappage of all older light-duty vehicles in a typical urban area's fleet are analyzed, and the sensitivity of those reductions to the timing of the program's implementation and to alternative assumptions about more intensive use of vehicles remaining in the fleet are explored. The cost-effectiveness of such a program in reducing ozone precursor emissions is investigated and the reliability of estimates of the program's effectiveness developed by using the MOBILE5a vehicle emissions model are evaluated. The likely emissions reductions from even so comprehensive a vehicle scrappage program cannot replace those anticipated to result from measures such as enhanced inspection and maintenance and sales of reformulated gasoline, but smaller-scale retirement programs may be a cost-effective element of a larger package of emissions reduction strategies.

This paper appears in Transportation Research Record No. 1587, Effects of Transportation on Energy and Air Quality.

English

p. 121-127

1997

Transportation Research Record

0309061695

Figures (3) ; References (6) ; Tables (3)

Cost effectiveness; Pollutants

Older motor vehicles; Reduction (Decrease); Vehicle scrappage

Environment; Highways

TRIS, TRB, ATRI

Dec 29 1997 12:00AM

• ALTERNATIVE FUEL VEHICLE PROGRAMS: APPLICABILITY OF GOVERNMENT INCENTIVES
• ANALYSIS OF MODAL EMISSIONS FROM DIVERSE IN-USE VEHICLE FLEET
• ANOTHER WAY TO GO? SOME IMPLICATIONS OF LIGHT-DUTY DIESEL STRATEGY
• BINARY RECURSIVE PARTITIONING METHOD FOR MODELING HOT-STABILIZED EMISSIONS FROM MOTOR VEHICLES
• CONFORMITY: LONG-TERM PROGNOSES FOR SELECTED OZONE NONATTAINMENT AREAS IN CALIFORNIA
• COST ESTIMATES OF TRANSPORT AIR POLLUTION IN SANTIAGO, CHILE
• DEVELOPMENT OF COMPREHENSIVE MODAL EMISSIONS MODEL: OPERATING UNDER HOT-STABILIZED CONDITIONS
• EMISSIONS IMPACT OF ELIMINATING NATIONAL SPEED LIMITS: ONE YEAR LATER
• FORECASTING COST PATH OF ELECTRIC VEHICLE DRIVE SYSTEM: MONTE CARLO EXPERIENCE CURVE SIMULATION
• IMPLICATIONS OF TRANSIENT MODE DURATION FOR SPATIALLY DISAGGREGATED HIGH-RESOLUTION EMISSION INVENTORY STUDIES
• MODELING FRAMEWORK FOR ESTIMATING EMISSIONS IN LARGE URBAN AREAS
• QUEUEING ALGORITHM FOR CALCULATING IDLING EMISSIONS IN FLINT--THE FLORIDA INTERSECTION AIR QUALITY MODEL
• TRANSITIONAL ALTERNATIVE FUELS AND VEHICLES MODEL
• USE OF EPISODIC CONTROLS TO REDUCE FREQUENCY AND SEVERITY OF AIR POLLUTION EVENTS