Early morning drivers will notice a change starting today to traffic signal light patterns that is expected to better manage early morning traffic volumes
Mondays through Saturdays.

lights throughout the City of Spokane will switch from flashing yellow to regular
red-yellow-green signal patterns at 5 a.m. beginning today, Nov. 4. Currently, that
transition occurs at 6 a.m.

flash was first initiated in Spokane in the 1950’s for traffic volume
flow.  Essentially, when volumes were low in the early morning hours,
traffic lights flashed yellow. 

traffic volumes are increasing earlier in the morning hours. To accommodate
this, the City is changing the time the
flashing yellow lights return to regular signal programming.


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