20th Century problems are easily solved in the 21st Century.

Can anyone even think of  having Green Light all the way on Farrington and Kamehameha Highway?
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"what do you do when people ignore yellow lights and block traffic all four ways, which happens quite often." - garydubrail
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**That only happens when traffic is slow.  
** So,  when the yellow light turns on the cars in front have not moved.  
** Or when cars making left turn are stuck at the center.
** But when traffic is moving fast, nobody gets stuck at the center of the intersection after going thru a yellow light.
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Is Green Light all the way on Farrington and Kamehameha Highway conceivable or even possible? 
Yes, it is conceivable and even possible in this the 17th year of the 21st Century when it is conceivable and even possible for a car to travel without a driver and many more.