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From page 139... ... Guide to Truck Activity Data for Emissions Modeling G-1 Appendix G Case Study #7: Representative Drive Cycles for Different Project Contexts G.1 Emissions Model Inputs Supported • Operating mode distribution (project-level) Read the entire page →
From page 140... ... Guide to Truck Activity Data for Emissions Modeling G-2 the project team developed drive cycles corresponding to the operating mode distributions developed in Case Study #1. Since drive cycles are second-by-second speed traces that represent the instantaneous speed and acceleration of the vehicle, they can be applied to calculate VSP and subsequently operating mode bins in future versions of MOVES. Read the entire page →
From page 141... ... Guide to Truck Activity Data for Emissions Modeling G-3 1. Vehicle activity splitting: Typically, vehicle activity data in terms of second-by-second speed profiles are collected by an onboard data logger instrumented on the vehicle. Read the entire page →
From page 142... ... Guide to Truck Activity Data for Emissions Modeling G-4 the JSAD of the representative cycle in Figure F.2. The JSADs of data population and representative cycle for all the scenarios are provided in the appendix at the end of this case study report. Read the entire page →
From page 143... ... Guide to Truck Activity Data for Emissions Modeling G-5 Figure G.1 JSAD of Data Population -- FHWA Advances Port Gate, 10 Trucks per Hour (Gate Approach) Figure G.2 JSAD of Drive Cycle -- FHWA Advances Port Gate, 10 Trucks per Hour (Gate Approach) Read the entire page →
From page 144... ... Guide to Truck Activity Data for Emissions Modeling G-6 Figure G.3 Drive Cycle -- FHWA Advances Port Gate, 10 Trucks per Hour (Gate Approach) Figure G.4 Drive Cycle -- FHWA Advances Port Gate, 10 Trucks per Hour (Intersection Approach) Read the entire page →
From page 145... ... Guide to Truck Activity Data for Emissions Modeling G-7 Figure G.5 Drive Cycle -- FHWA Advances Port Gate, 60 Trucks per Hour (Gate Approach) Figure G.6 Drive Cycle -- FHWA Advances Port Gate, 60 Trucks per Hour (Intersection Approach) Read the entire page →
From page 146... ... Guide to Truck Activity Data for Emissions Modeling G-8 Figure G.7 Drive Cycle -- FHWA Advances On Port Figure G.8 Drive Cycle -- El Paso Border Crossing; Creeping Queue Southbound Trucks (All) Read the entire page →
From page 147... ... Guide to Truck Activity Data for Emissions Modeling G-9 Figure G.9 Drive Cycle -- El Paso Border Crossing Stop-and-Go Queue, Southbound Trucks (All) Figure G.10 Drive Cycle -- El Paso Border Crossing Uncongested Links, Southbound Trucks (All) Read the entire page →
From page 148... ... Guide to Truck Activity Data for Emissions Modeling G-10 Figure G.11 JSAD of Data Population -- FHWA Advances Port Gate, 10 Trucks per Hour (Gate Approach) Figure G.12 JSAD of Drive Cycle -- FHWA Advances Port Gate, 10 Trucks per Hour (Gate Approach) Read the entire page →
From page 149... ... Guide to Truck Activity Data for Emissions Modeling G-11 Figure G.13 JSAD of Data Population -- FHWA Advances Port Gate, 10 Trucks per Hour (Intersection Approach) Figure G.14 JSAD of Drive Cycle -- FHWA Advances Port Gate, 10 Trucks per Hour (Intersection Approach) Read the entire page →
From page 150... ... Guide to Truck Activity Data for Emissions Modeling G-12 Figure G.15 JSAD of Data Population -- FHWA Advances Port Gate, 60 Trucks per Hour (Gate Approach) Figure G.16 JSAD of Drive Cycle -- FHWA Advances Port Gate, 60 Trucks per Hour (Gate Approach) Read the entire page →
From page 151... ... Guide to Truck Activity Data for Emissions Modeling G-13 Figure G.17 JSAD of Data Population -- FHWA Advances Port Gate, 60 Trucks per Hour (Intersection Approach) Figure G.18 JSAD of Drive Cycle -- FHWA Advances Port Gate, 60 Trucks per Hour (Intersection Approach) Read the entire page →
From page 152... ... Guide to Truck Activity Data for Emissions Modeling G-14 Figure G.19 JSAD of Data Population -- FHWA Advances On Port Figure G.20 JSAD of Drive Cycle -- FHWA Advances On Port 0-5 5-10 10-15 15-20 20-25 25-30 30-35 35-40 40-45 45-50 50-55 55-60 60-65 65-70 70-75 75-80 10±0.5 9±0.5 8±0.5 0.00 0.00 7±0.5 0.00 0.03 0.09 0.02 0.13 6±0.5 0.02 0.18 0.24 0.08 0.05 0.01 0.58 5±0.5 0.02 0.20 0.30 0.40 0.23 0.01 1.15 4±0.5 0.10 0.17 0.33 0.36 0.16 0.01 0.00 1.13 3±0.5 0.02 0.16 0.18 0.11 0.17 0.08 0.00 0.00 0.73 2±0.5 0.06 0.37 0.31 0.27 0.11 0.05 0.01 0.00 1.18 1±0.5 0.68 1.09 0.19 0.07 0.05 0.02 0.01 0.00 2.11 0±0.5 34.70 46.80 2.08 3.91 0.86 0.19 0.00 88.54 -1±0.5 0.67 1.33 0.56 0.17 0.06 0.02 0.00 2.81 -2±0.5 0.00 0.06 0.20 0.25 0.14 0.07 0.01 0.73 -3±0.5 0.03 0.11 0.09 0.06 0.04 0.01 0.35 -4±0.5 0.01 0.12 0.18 0.10 0.02 0.00 0.43 -5±0.5 0.00 0.00 0.02 0.05 0.02 0.00 0.09 -6±0.5 0.00 0.00 0.00 0.00 0.00 0.01 -7±0.5 0.00 0.00 0.00 -8±0.5 0.00 0.00 0.00 0.00 -9±0.5 -10±0.5 0.00 0.00 Total 0.00 36.25 50.34 4.44 5.85 2.26 0.81 0.04 0.00 0.00 100.00 Accel Bin (mph/s) Speed Bin Total (mph) Read the entire page →
From page 153... ... Guide to Truck Activity Data for Emissions Modeling G-15 Figure G.21 JSAD of Data Population -- El Paso Border Crossing Creeping Queue, Southbound Trucks (All) Figure G.22 JSAD of Drive Cycle -- El Paso Border Crossing Creeping Queue, Southbound Trucks (All) Read the entire page →
From page 154... ... Guide to Truck Activity Data for Emissions Modeling G-16 Figure G.23 JSAD of Data Population -- El Paso Border Crossing Stop-and-Go Queue, Southbound Trucks (All) Figure G.24 JSAD of Drive Cycle -- El Paso Border Crossing; Stop-and-Go Queue Southbound Trucks (All) Read the entire page →
From page 155... ... Guide to Truck Activity Data for Emissions Modeling G-17 Figure G.25 JSAD of Data Population -- El Paso Border Crossing Uncongested Links, Southbound Trucks (All) Figure G.26 JSAD of Drive Cycle -- El Paso Border Crossing Uncongested Links, Southbound Trucks (All) Read the entire page →
From page 156... ... Guide to Truck Activity Data for Emissions Modeling G-18 G.7 Transferability This case study provides representative drive cycles for a variety of truck-specific conditions. In the lack of project-specific speed trace data, modelers may use one or more of the drive cycles presented in this case study in combination with other locally appropriate MOVES inputs to estimate the potential emission impacts of the project. Read the entire page →

From page 139...

... Guide to Truck Activity Data for Emissions Modeling G-1 Appendix G Case Study #7: Representative Drive Cycles for Different Project Contexts G.1 Emissions Model Inputs Supported • Operating mode distribution (project-level)