Multimodal mobility dashboard - Spokane region


Region executive summary

Interstate 90 (I-90) in the Spokane area is one of the region's key commute and economic corridors. Travel data shows an increase in traffic volumes due to economic growth. The peak periods for the I-90 corridor in the Spokane region are defined as 7 - 10 a.m. and 3 - 6 p.m.

2021 Highlights

  • In 2021, the average daily person miles traveled increased from 2020 due to the recovery of traffic volume across the region. Along with the recovery of traffic volume was an increase in delay for 2021. Both person miles traveled and delay were still lower than pre-pandemic levels but are increasing. Public transportation has been experiencing improvements in ridership but remains well below pre-pandemic levels. Park & Ride usage grew compared to 2020, but still, their usage was significantly lower than in 2019
  • Vehicle delay on the I-90 corridor in Spokane increased from 1,057 hours in 2020 to 23,460 hours in 2021
  • Average and reliable peak travel times for evening trip from Division Street to Argonne Road (Eastbound) on I-90 in 2021 at 9 minutes and 15 minutes, respectively
  • Approximately 261 million person miles were traveled on the I-90 corridor in Spokane in 2021, up 13% from 231 million person miles in 2020
  • During the westbound morning commute in 2021, buses (0.2% of all vehicles) moved 1.4% of travelers on I-90 at Division Street
  • In April 2021 five additional ramp meters were activated at Walnut EB, Monroe EB, Division EB, Hamilton EB, and Browne WB which reduced congestion length and duration. Collisions in the immediate vicinity of the EB Walnut on ramp merge and on the ramp decreased to 8 in 2021 while the previous five years averaged 21 per year. Of the 8 total collisions at the Walnut EB meter, 4 collisions occurred prior to the April 2021 ramp meter activation, with 4 collisions in the remaining 9 months of 2021
  • Multiple years-old data detection devices were replaced in 2020 that went live in May 2021 and some were added for the 2020 ramp meter project that went live in May 2021
Interstate 90 map image

Source: WSDOT Transportation Safety and Systems Analysis Division and WSDOT TRACFLOW (https://tracflow.wsdot.wa.gov/)

Interstate 90

Interstate 90 (I-90) in the Spokane area is one of the region's key commute and economic corridors. Over 250 million person miles were traveled on I-90 between Division Street and Argonne Road in 2017. Select the green bar below for more Interstate 90 multimodal mobility analysis information.



Interstate 90 map image
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