Investor Presentaiton

On-Road Motor Vehicles - Results Significant Sources - - Heavy-duty diesel vehicles (NOx, SO2, PM10, and PM2.5) – Light-duty gas vehicles and trucks (VOC, CO, and HAPS) Mexicali emissions > SLRC emissions SLRC more population and vehicle trips, but more concentrated activity - Mexicali trip origins and destinations more disperse - ERG TDM performs best in urban areas; more uncertainty in rural areas 28

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