Figure 2
From: Investigation into pedestrian exposure to near-vehicle exhaust emissions
Raw drive-by test data. The raw data from drive-by tests in which the test vehicle was driven past a mannequin are plotted versus time. Plot A represents the case involving accelerating the test vehicle past the sample location at full load. Plot B corresponds to the case where the test vehicle accelerated past the sample location at part load. Plot C shows the case in which the test vehicle was driven past the sample location at a constant speed with high engine speed and almost zero load.