“…One study found that motorists did not perceive six-scales of delay (A-F), but instead thought in terms of three: ''good, '' ''marginal,'' and ''poor'' (Fang et al, 2003). Other studies conclude that motorist perception of the quality of an intersection is highly variable and influenced by trees, aesthetics of the surroundings, the size of other vehicles such as SUVs and pick-up trucks, pavement quality, and aggressive driving (Flannery et al, 2006;Ko et al, 2006;Lee et al, 2007;Pecheux et al, 2004).…”