In 2023, annual GP person miles traveled increased from 2022 and surpassed pre-pandemic levels due to the ongoing recovery of traffic volumes in the wake of COVID-19. Approximately 1.67 million person miles were traveled in the GP lanes on I-5 between Olympia and Federal Way, 3.7% more than the 1.61 million person miles in 2022.
Travelers on this corridor experienced 771,000 hours of vehicle delay in 2023, down 30.0% from 1.1 million in 2022. This reduction in delay could be attributed to the completion of construction in Tacoma, which opened new northbound lanes and a southbound HOV lane on I-5.
In 2023, 37.3% of parking spaces at park and ride lots on this corridor were occupied, up 18.8% from 31.4% in 2022.
In 2022, annual GP person miles traveled increased from 2021 and reached the pre-pandemic levels due to the ongoing recovery of traffic volumes in the wake of COVID-19. Nearly 1.61 billion person miles were traveled in the GP lanes on I-5 between Olympia and Federal Way, 3.8% more than the 1.56 billion person miles in 2021. Delay decreased from 2021. Travelers on this corridor experienced 1.1 million hours of vehicle delay in 2022, down 26.5% from 1.5 million in 2021. This reduction in delay could be attributed to the completion of construction in Tacoma, opening new northbound lanes and a southbound HOV lane on I-5. 31.4% of parking spaces at park and ride lots on this corridor were occupied in 2022, up from 25.0% in 2021.
In 2021, annual GP person miles traveled and vehicle delay increased from 2020, due to the recovery of traffic volumes in the wake of COVID-19. However, annual GP person miles traveled and vehicle delay in 2021 were still lower than the pre-pandemic levels. Nearly 1.6 billion person miles were traveled in the GP lanes on I-5 between Olympia and Federal Way, a 11% increase from 1.4 billion in 2020. Travelers on this corridor experienced 1.5 million hours of vehicle delay in 2021, up 135.4% from 0.6 million in 2020. Approximately 25% of parking spaces at park and ride lots on this corridor were occupied in 2021, down from 29.1% in 2020.
In 2020, the statewide response to COVID-19 resulted in a significant reduction in GP person miles traveled and annual delay. Nearly 1.4 billion person miles were traveled in the GP lanes on I-5 between Olympia and Federal Way, a 13% decrease from 2019. Travelers on this corridor experienced 618 thousand hours of vehicle delay in 2020, down 74% from 2.4 million in 2019. Approximately 30% of parking spaces at park and ride lots on this corridor were occupied in 2020, down from 80.5% in 2019.
In 2019, nearly 1.6 billion person miles were traveled in the GP lanes on I-5 between Olympia and Federal Way, the same as in 2018. Travelers on this corridor experienced 2.4 million hours of vehicle delay in 2019, up 24% from 1.9 million in 2018. Approximately 81% of parking spaces at park and ride lots on this corridor were occupied in 2019, up from 76% in 2018.
