Fig 1.
a. Location of 2020 Labor Day wildfires in Oregon [37]; b. Location of highway 224 within the 2020 Riverside wildfire [37]; c. Location of highway 22 within the 2020 Beachie Creek wildfire [37]; d. Location of highway 22 within the 2020 Lionshead wildfire [37]; e. Location of highway 126 within the 2020 Holiday Farm wildfire [37]; f. Location of highway 138, within the 2020 Archie Creek wildfire [37].
Table 1.
Study area summary.
Fig 2.
Physical components of 2020 Labor Day wildfires in Oregon.
Fig 3.
Length of Highways (Hwy) Impacted/Closed during 2020 Labor Day wildfires in Oregon.
Fig 4.
Length of Highway (Hwy) Closed & Emergency repairs on 2020 Labor Day wildfires in Oregon.
Fig 5.
Scatterplot matrix showing how each predictor variable (HTC, PC, SRSC, and SC) is related to the outcome variable (T1) and each other.
Fig 6.
Scatterplot matrix showing how the predictor variables (HTC and SRSC) are related to the outcome variable (T1) and each other.
Table 2.
Regression model determining if there is a significant relationship between T1 and HTC and SRSC.
Fig 7.
Scatterplot matrix showing how each predictor variable (HTC, PC, SRSC, and SC) is related to the outcome variable (Size) and each other.
Fig 8.
Scatterplot matrix showing how the predictor variables (PC and SC) are related to the outcome variable (Size) and each other.
Table 3.
Regression model determining if there is a significant relationship between size and PC and SC.
Fig 9.
Length (km) of Existing vs. Detour Highway (Hwy) routes in 2020 Labor Day wildfires in Oregon.
Fig 10.
Time (minutes) of Existing vs. Detour Highway (Hwy) Routes in 2020 Labor Day wildfires in Oregon.
Fig 11.
Length of Highway (Hwy) Impacted (km) vs. Estimated Emergency Repair Cost of hazard tree removal in 2020 Labor Day wildfires in Oregon.
Fig 12.
Length of Highway (Hwy) Impacted (km) vs. Estimated Emergency Repair Cost of pavement damage in 2020 Labor Day wildfires in Oregon.
Fig 13.
Length of Highway (Hwy) Impacted (km) vs. Estimated Emergency Repair Cost ($) of slope/rock scaling damage in 2020 Labor Day wildfires in Oregon.
Fig 14.
Length of Highway (Hwy) Impacted (km) vs. Estimated Emergency Repair Cost ($) of structural damage in 2020 Labor Day wildfires in Oregon.
Fig 15.
Length of Highway (Hwy) Impacted (km) vs. Estimated Emergency Traffic Control Cost ($) in 2020 Labor Day wildfires in Oregon.
Fig 16.
AADT 2015–2019 vs. AADT 2020 in Oregon.
Fig 17.
Reduced AADT percentage.
Table 4.
Oregon megafires 2015.