Use the m/m/1 model to analyze a typical cash lane at the exit 53 toll plaza. on a weekday, what is the minimum number of cash lanes that need to open during each of the three traffic conditions, to keep average tailback down to four vehicles or less?

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.