Getting on the MOVES: Using
Dynameq and the US EPA MOVES
Model to Measure the Air Pollution
Emissions
TRPC – Smart Corridors Project
Chris Breiland
Fehr & Peers
September 16, 2011
Outline
• Project Overview, Background and Objectives
• Dynameq Model Development
• Estimating Air Pollution Emissions
• Motor Vehicle Emission Simulator (MOVES)
• Comparison
• Conclusions
• Q&A
Overview
• TRPC - intergovernmental
board made up of local
government jurisdictions
• County area - 727 sq miles
population - 245,300
• The county’s population is
expected to be 373,000 in
2030
• The county is the home of
the State’s Capitol, City of
Olympia
Project Background
• Congestion Mitigation and Air Quality (CMAQ) grant
• Options to reduce PM10 through ITS deployment
– coordinated signal timing and optimization
– transit signal priority (TSP)
• Two strategic corridors were chosen from the
Regional Transportation Plan (RTP) that are
problematic for Intercity Transit’s on-time
performance goals
Study Corridors
Project Objectives
• To improve multi-modal transportation operations on the
two corridors
• To evaluate signal coordination and optimization
• To evaluate transit signal priority options
• To reduce PM10 (particulate matter) emissions in the
corridors.
Model Development
• NETWORK
– Entire network brought into DTA model from EMME Travel Demand
Model
– Refined the Dynameq network to add missing intersections on the
corridors
– Modified all centroid connectors for the zones around two corridors to
reflect field conditions
– Verified link attributes
– Network properties in DTA model:
– 800 centroids
– 2,500 regular nodes
– 8,000 links
– 20 transit lines
• TRIP TABLES
– Trip tables brought from EMME Travel Demand Model
– The modes are SOV, HOV & Truck
Model Development
• INTERSECTION CONTROLS
– Focused on corridors and a several-block buffer
– 81 signals & 67 stop controlled intersections
• INTERSECTION GEOMETRY
– Approaches to the intersections were modified to
reflect field conditions
– Added right and left turn lane pockets where needed
Model Development
• Validation / Calibration
– Validated and calibrated the existing year model (study
corridors and I-5 primarily)
• Based on link counts
• Based on turn move counts
• Based on travel time on corridors
– Queuing at hot spots
Model Validation
Air Pollution Emissions and Model Detail
• Air Pollution Highly
Sensitive to:
• VMT
• Speed
• Vehicle Type
• Drive Cycle
• DTA versus Static
Models
How are Emissions Estimated?
• Air Quality Analysis tools – EMFAC, Mobile6, MOVES
Motor Vehicle Emission Simulator (MOVES)
• State-of-art tool for estimating emission from highway
vehicles developed by US Environmental Protection
Agency (EPA)
• Highly detailed
• Perfect for Dynameq
MOVES Input Data
Data needs from Dynameq DTA Model
• Link
MOVES Input Data
Data needs from Dynameq DTA Model
• Fleet Mix
Source Type ID
Source Type Name
11
Motorcycle
21
Passenger Car
31
Passenger Truck
32
Light Commercial Truck
41
Intercity Bus
42
Transit Bus
43
School Bus
51
Refuse Truck
52
Single Unit Short-haul Truck
53
Single Unit Long-haul Truck
54
Motor Home
61
Combination Short-haul Truck
62
Combination Long-haul Truck
MOVES Input Data
Data needs from Dynameq
DTA Model
• Operating Mode Distribution
– for each link, source type and
pollutant
opModeID
opModeName
0
Braking
1
Idling
11
Low Speed Coasting; VSP< 0; 1<=Speed<25
12
Cruise/Acceleration; 0<=VSP< 3; 1<= Speed<25
13
Cruise/Acceleration; 3<=VSP< 6; 1<=Speed<25
14
Cruise/Acceleration; 6<=VSP< 9; 1<=Speed<25
15
Cruise/Acceleration; 9<=VSP<12; 1<=Speed<25
16
Cruise/Acceleration; 12<=VSP; 1<=Speed<25
21
Moderate Speed Coasting; VSP< 0; 25<=Speed<50
22
Cruise/Acceleration; 0<=VSP< 3; 25<=Speed<50
23
Cruise/Acceleration; 3<=VSP< 6; 25<=Speed<50
24
Cruise/Acceleration; 6<=VSP< 9; 25<=Speed<50
25
Cruise/Acceleration; 9<=VSP<12; 25<=Speed<50
26
Cruise/Acceleration; 12<=VSP; 25<=Speed<50
27
Cruise/Acceleration; 12<=VSP<18; 25<=Speed<50
28
Cruise/Acceleration; 18<=VSP<24; 25<=Speed<50
29
Cruise/Acceleration; 24<=VSP<30; 25<=Speed<50
30
Cruise/Acceleration; 30<=VSP; 25<=Speed<50
33
Cruise/Acceleration; VSP< 6; 50<=Speed
35
Cruise/Acceleration; 6<=VSP<12; 50<=Speed
36
Cruise/Acceleration; 12 <= VSP; 50<=Speed
37
Cruise/Acceleration; 12<=VSP<18; 50<=Speed
38
Cruise/Acceleration; 18<=VSP<24; 50<=Speed
39
Cruise/Acceleration; 24<=VSP<30; 50<=Speed
40
Cruise/Acceleration; 30<=VSP; 50<=Speed
OpMode
Uh-oh!
OpMode
Uh-oh!
New Component for Dynameq to Extract the
Necessary MOVES Input Data
OpMode
• 300,000 rows
Emissions Calculation Comparisons
2010 Base
VMT
EMME +
EMFAC
25,210
EMFAC
Mobile6
MOVES
30,029
PM 10 (g)
CO2 (g)
1,309
12,420,539
2,224
17,883,106
1,282
16,591,022
997
17,051,387
Concluding Thoughts
• MOVES is new standard
• MOVES is built for a tool like Dynameq
• INRO Dynameq-MOVES component enables
analysis
• MOVES very difficult to run
Thank You!
Chris Breiland
[email protected]