From: dannyb@panix.com   
      
   In  Phil Kane  writes:   
      
   >On Fri, 9 Oct 2020 07:15:15 -0700 (PDT), "Peter T. Daniels"   
   > wrote:   
      
   >>There was once an article in Scientific American on timed traffic   
   >>lights showing how they could be used on two-way streets. But   
   >>doesn't this mean that the timed traffic light is a thing of the   
   >>past?   
      
   >We studied that stuff in a UCLA course in Transportation Engineering   
   >that I took in 1959.  Nothing new under the sun.   
      
   Yabbut, did they have yellow signals back then?   
      
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