An approach at a pretimed signalized intersection has a constant saturation flow rate of 2400 veh/h and is allocated 24 seconds of effective green time in an 80-second signal cycle. If the total approach flow rate is 500 veh/h and 60% of the traffic arrives in the first 24-seconds of red due to a miscalculated offset, calculate the total delay assuming D/D/1 queuing and average delay. Include a sketch of the delay polygon (Hint: it might be easiest to use Excel to graph some of the line segments you calculate. label the lines and rates, where appropriate.