"A man sits in his car at the traffic lights, waiting for them to go green"

The male in Michael Frayn's quote is in a state of anticipation, waiting on the traffic signal to turn green. He remains in a state of limbo, unable to progress until the lights change. The man is likely feeling a sense of impatience, eager to get to his location. He is also most likely feeling a sense of disappointment, as he is stuck in a scenario he can not manage. The man's thoughts might be roaming, as he waits on the lights to change. He may be thinking about his destination, or the jobs he requires to finish when he arrives. He may also be reviewing his life, or the events of the day. The guy's feelings might be a mix of anticipation, aggravation, and uneasyness. He is stuck in a moment of time, waiting for the lights to go green and for his journey to continue.