Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
3.0 Literature Review The literature review for this project was conducted during the spring and summer of 2012. The primary focus was on literature addressing the development of MOVES inputs. However, literature that generally discusses emissions modeling inputs, including data sources, data collection methods, and processing methods, was included as long as it is relevant to the development of MOVES inputs. Appendix A identifies literature sources relevant to each input and briefly discusses the applicability of the source to developing guidance, tools, and/or data for that particular MOVES input. Inputs are discussed in the following categories: ⢠Fleet data, including distributions of vehicles by age and vehicle type; ⢠Regional activity inputs, or inputs that describe vehicle activity for county- level MOVES runs (e.g., for SIP or regional conformity analysis), including VMT distributions by vehicle type, temporal adjustments, road type distributions, and average speed distributions; ⢠Project-level inputs, or inputs unique to a project-level MOVES run, including link activity (e.g., average speeds or drive schedules), off-network data (e.g., starts), link characteristics, and link source types; and ⢠Other inputs, including meteorology, inspection and maintenance (I/M) programs, and fuel. Appendix A also includes a review of three surveys conducted by other organizations on MOVES. These include: ⢠A 2011 survey by the Association of Metropolitan Planning Organizations (AMPO) regarding various air quality issues, including level of MOVES experience, development of MOVES data inputs, and MOVES training; ⢠A survey of five MPOs conducted on behalf of FHWA in 2011 to characterize the state of practice for preparing certain MOVES inputs; and ⢠A survey of Tennessee agencies conducted by the Tennessee DOT. Appendix B includes an annotated bibliography of the referenced literature sources, with a general description of each source. The various sources can generally be characterized as follows: ⢠Sources that provide guidance generally accessible to practitioners on the development of MOVES inputs. These primarily include various U.S. EPA guidance documents (sources [28]-[34]). In addition, source [5] (Chatterjee and Miller, 1994), while two decades old now, is noteworthy for providing a comprehensive review of a number of data sources and methods which are still widely used today. 3-1
⢠Sources describing the use of a specific data collection method or study such as GPS, video, or freeway loop detectors, e.g., [1], [7],[19], [24]. ⢠Sources discussing the preparation and use of outputs from travel demand or simulation models, such as [9], [21], [26], and [27]. ⢠Data mining studies that use existing data sources in new ways, such as [8] and [19]. 3-2
