(Undated)  --  Data from a trucking research group shows a number of Puget Sound locations are among the nation's worst traffic bottlenecks.  They include state Route 18 at SR 167 in Auburn; Interstate 5 at I-90 in Seattle; I-5 at I-705 and state Route 16 in Tacoma; state Route 18 at I-5 in Federal Way; and I-90 at I-405 in Bellevue, all of which rank among the 21 worst bottlenecks.  The American Transportation Research Institute ranks Interstate 5 at I-84 in Portland 41st, the only one in Oregon to make the list of worst traffic bottlenecks.  ATRI uses truck GPS data to arrive at the rankings.