Using the MOVES Model to Do a Project Level PM Air Quality Analysis 2010 TRB Environment and Energy Research Conference Raleigh, North Carolina

Size: px

Start display at page:

Download "Using the MOVES Model to Do a Project Level PM Air Quality Analysis 2010 TRB Environment and Energy Research Conference Raleigh, North Carolina"

Lindsay Cross
5 years ago
Views:

1 Using the MOVES Model to Do a Project Level PM Air Quality Analysis 2010 TRB Environment and Energy Research Conference Raleigh, North Carolina Michael Claggett FHWA Resource Center June 7, 2010

2 Overview Flowchart from EPA s Draft Transportation Conformity Guidance Generating a Run Specification Entering Data Into Project Data Manager Applying Emission Results

PM2.5 and PM10 Nonattainment and Maintenance Areas Public Draft,

3 Steps for Using MOVES in a Quantitative PM Hotspot Analysis Reference: U.S. EPA, Transportation Conformity Guidance for Quantitative Hot-spot Analyses in PM2.5 and PM10 Nonattainment and Maintenance Areas Public Draft, EPA-420-P , stateresources/ transconf/policy/420p10001.pdf, May 2010.

4 MOVES User Interface Main Menu Bar Detail Panel Navigation Panel

5 MOVES User Interface Construct a MOVES runspec by advancing through all navigation panels in sequence before launching the Project Domain Manager

6 Pertinent Navigation Panels

7 Scale Select Project for the Domain/ Scale For the Calculation Type, select: Inventory mass/specified time span; Emission Rates mass/ activity (e.g., distance traveled, source hours idling, start, etc.)

8 Time Spans The Time Aggregation Level is fixed at Hour As a result, only one selection can be made for Years, Months, Days, and Hours. The Start Hour and End Hour must be identical

..... the Project Domain Manager may be entered here; but

9 Geographic Bounds A single county must be specified for the Region County; Zone & Link; or Custom Domain, i.e., generic county the Project Domain Manager may be entered here; but wait until information is specified in all panels.

10 Pollutants and Processes Pollutant Chaining

11 Pollutants and Processes On-Road Components

12 Pollutants and Processes Off-Network Components

13 Pollutants and Processes Off-Network Components

14 Options for Launching the Project Domain Manager Select from Drop-Down Menu Click Enter/Edit Data

15 Specifying Local Data MOVES Table Data Importer County Domain Project Domain Age Distribution X X X Average Speed Distribution X X Fuel Supply X X X Fuel Formulation X X X Meteorology Data X X X Ramp Fraction X X Road Type Distribution X X Source Type Population X X Vehicle Type VMT X X

16 Specifying Local Data MOVES Table Data Importer County Domain Project Domain I/M Programs X X X Zone Road Activity (Custom Domain only) Links Link Source Types Link Drive Schedules Off-Network Operating Mode Distribution X X X X X X X

17 MOVES Project Data Manager Database tab functions:

18 MOVES Project Data Manager Common tab functions: Alternate tab functions:

19 Templates

20 Templates

21 Templates

22 Templates

23 Applying Emission Results Link Average Speed Default drive cycles Link Drive Schedules User-defined drive cycles representing the fleet average Operating Mode Distribution User-defined drive cycles by individual source type Advanced Applications Modal emission rates Operating mode look-up tables

24 Variability of Emission Factors with Speed

25 Variability of Emission Factors with Temperature

26 EPA Draft Guidance Recommendations Typically, complete 16 unique MOVES runs to account for variability of emissions during the day (4 time periods) morning peak midday evening peak, and overnight and season (4 months) January April July October

27 Vehicle Operating Modes Speed Trajectory

28 Vehicle Operating Mode Spatial Differentiation Roadways can be segmented to differentiate modes of vehicle operation. Cruise Decelerate Idle Accelerate

29 Vehicle Operating Modes Emissions

30 Vehicle Operating Modes VSP Trajectory

31 Vehicle Operating Modes OpMode Look Tables Source Type OpMode Description 21 (Passenger Car) 23 0 VSP < 3; 25 Spd < 50 Emission Rate (μg/s) Braking Idling VSP < 3; 1 Spd < 25 3 VSP < 6; 1 Spd < 25 6 VSP < 9; 1 Spd < 25 9 VSP < 12; 1 Spd < 25

32 Summary MOVES2010 provides a tool for predicting PM emissions at the project scale EPA has release Draft Guidance for public comment on the use of MOVES2010 for quantitative PM hot-spot analysis 4 general steps: 1. Determine the scope of the analysis 2. Construct a run specification 3. Specifying project- and local-specific data in the Project Domain Manager 4. Applying emission results

33 Summary Emission results may be applied for: Link average speed default drive cycles Link drive schedules user-defined drive cycles representing the fleet average Operating mode distribution user-defined drive cycles by individual source type Segregated link drive schedules characterize the fundamental cruising, decelerating, idling, and accelerating modal emissions OpMode look-up tables g/s emission rates by source type by operating mode

CHAPTER 7: EMISSION FACTORS/MOVES MODEL

CHAPTER 7: EMISSION FACTORS/MOVES MODEL 7.1 Overview This chapter discusses development of the regional motor vehicle emissions analysis for the North Central Texas nonattainment area, including all key