Evaluating the emissions from heavy-duty construction equipment.

Details

• Creators:
  Barth, Mathew ; Durbin, Thomas D. ; Miller, J. Wayne ; Scora, George
• Corporate Creators:
  California. Dept. of Transportation. Division of Research and Innovation
• Subject/TRT Terms:
  Air California Construction Equipment Earthmoving Machinery Exhaust Gas Motors (Diesel) Pollution
• Publication/ Report Number:
  RTA 65A0197
• Resource Type:
  Tech Report
• Geographical Coverage:
  California
• Corporate Publisher:
  California. Department of Transportation
• Abstract:
  Gaseous and particle emissions from construction engines are an important fraction of the total air pollutants and are gaining increasing
  
  regulatory attention. Quantification of NOx and PM is necessary to inventory the contribution of the construction equipment, such as used by
  
  Caltrans, to atmospheric loadings, particularly for those projects in non-attainment or maintenance areas. At present, however, there is no
  
  model mutually accepted by Caltrans and regulatory agencies that can be used for the estimation of construction emissions or the development
  
  of appropriate regulations. This is due in part to a lack of emissions data from construction equipment under in-use operating conditions. The
  
  lack of a sound scientific basis for regulation has resulted in legal cases and other obstacles that could potentially delay or inhibit important
  
  transportation projects.
  
  The goal of this research program was to carry out initial construction equipment emissions testing and to develop an emissions model for
  
  construction equipment based on these in-use emissions measurements. The program included two main aspects: 1) in-field emissions and
  
  activity measurements; and 2) model development and validation. The emissions measurements were made on a second-by-second basis using
  
  a portable emissions measurement system (PEMS) to develop relationships between NOx and PM and other emissions and fuel use. These
  
  emissions data were subsequently used in the development of a model that allows the determination of emissions from different pieces of
  
  construction equipment or for construction projects as a whole.
  
  
• Format:
  PDF
• Funding:
  65A0197
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7067e0b6934fe602753ef932dca3ee6895edd059193ec0c373c0591cbca2d3f4e34a783174d5bec689c1e24cabbfb7d4e1a2b5aef11c13f22ce349c8338f6df1
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27551/dot_27551_DS1.pdf
• File Type:
  [PDF - 8.89 MB ]