Vancouver region State Route 14 - Delay
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Measures of delay on SR 14 in the Vancouver area
Travel delay
Travel delay is the amount of extra time spent at speeds below a given threshold—such as the posted speed limit or the maximum throughput speed on a highway. WSDOT uses maximum throughput speed (85% of posted speed limit) as its threshold for calculating delay, which it measures in either annual hours of delay per vehicle or annual hours of delay per person. For details on methodology to calculate travel delay, refer to WSDOT's Handbook for Corridor Capacity Evaluation (PDF 5.9MB).
Heat maps
The heat maps below show vehicle hours of delay by time of day (measured in 5-minute intervals) and milepost. The darker the shading in a particular spot on the heat map, the more hours of delay occurred at that time and place. Shading is standardized across all the corridors to allow for comparison.
There is a separate heat map for each direction of travel. The eastbound graph below is read from left to right, while the corresponding westbound graph is read from right to left. For additional details on how to read heat maps, refer to Handbook for Corridor Capacity Evaluation (PDF 5.9MB).
Sources: Source: WSDOT Multimodal Planning Division and WSDOT Transportation Safety & Systems Analysis Division and WSDOT TRACFLOW (https://tracflow.wsdot.wa.gov/)
Note: Delay = Hours of travel delay
Performance highlights
In 2023 annual average delay vehicle hours of delay increased compared to 2022. The most intense annual average daily vehicle hours of delay on eastbound SR 14 occurred both eastbound and westbound SR 14 from mileposts 6.5 to 9.0.
In 2022, travelers experienced more delay than 2021, but still significantly lower than the pre-pandemic level. Travelers on SR 14 in the Vancouver region experienced 2,400 hours of vehicle delay, up 300% hours more than the 600 hours in 2021. The most intense vehicle delay on the SR 14 corridor occurred between mileposts 7.0 and 9.0, both eastbound and westbound.
In 2021, travelers experienced more delay than 2020, but it was still significantly lower than the pre-pandemic level. Travelers on SR 14 in the Vancouver region experienced 600 hours of vehicle delay, 500 hours more than 100 hours in 2020. The most intense vehicle delay on the SR 14 corridor occurred between mileposts 7.0 and 8.0, both eastbound and westbound.
In 2020, due to the statewide response to COVID-19 there was a significant decrease in delay compared to previous years. Travelers on SR 14 in the Vancouver region experienced fewer than 100 hours of vehicle delay, down just over 99% from 11,100 in 2019. Intensity of vehicle delay was significantly reduced compared to other years.
In 2019, travelers on SR 14 in the Vancouver region experienced 11,100 hours of vehicle delay, up more than 330% from 2,600 in 2018. The most intense vehicle delay on the SR 14 corridor occurred between mileposts 7.0 and 8.0.
Westbound morning delay was similar to eastbound delay in the evening. Westbound morning delay quadrupled from 2018 to 2019.