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Public Health Emergency Preparedness

This resource was part of AHRQ's Public Health Emergency Preparedness (PHEP) program, which was discontinued on June 30, 2011, in a realignment of Federal efforts.

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Figure 5: Effect of Traffic Congestion on Evacuation Time (Text Description)

The vertical axis of this chart shows evacuation time in days from 0 to 20 in 5-day increments. The horizontal axis shows travel time multipliers with factors from 1 to 10. With a multiplier of 1, evacuation time was 2.6 days. A travel time multiplier of 2 increases evacuation days to 4.4 days. A travel time multiplier of 4 increases evacuation days to 7.9 days. A travel time multiplier of 6 increases evacuation time to 11.5 days. A travel time multiplier of 8 increases evacuation days to 15 and a travel time multiplier of 10 increases evacuation dates to 18.5.

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