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A Comprehensive Development Plan for a Multimodal Noise and Emissions Model (2010) / Chapter Skim
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Pages 74-80

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From page 74...
... C-1 APPENDIX C CURRENT STATES OF THE ART This appendix reports the results of the examination of detailed information on the current domestic and foreign states of the art in modeling of transportation noise and emissions; building upon the initial list of models that had been identified in the proposal.
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From page 75...
... C-2 The most significant capabilities missing from all or most of the modes are: ● Second-by-second emissions ● Second-by-second concentrations ● Chemical Transformations The first two referring to second-by-second results are indicative of a lack of time-varying simulation capabilities. That is, the second-by-second activities of each source are generally not available at this time.
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From page 76...
... C-3 Green = Little or No Gap Yellow = Some Gap Red = Huge Gap TABLE C-1 Gap Assessment Matrix – Emissions Models End Capability Aviation Highway Off-Road Transit Marine Criteria emissions Yes, mainly from EDMS and the AEDT efforts Yes in models like MOBILE6.2 and EMFAC Yes, in models like NONROAD and OFFROAD Limited data (EFs) Limited data (EFs)
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From page 77...
... C-4 C.2. Gap Analysis to End State – Noise Appendix I provides detailed descriptions of noise models in use with tables that summarize each model's capabilities.
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From page 78...
... C-5 C.2.1.4. Local versus Global.
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From page 79...
... C-6 C.2.2.3. Ground Effects.
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From page 80...
... C-7 The considered models were relatively easy to use. However, sometime the ease existed because the models were basic.
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