Evacuation Route Planner Calculator
Estimate evacuation clearance time from population size, road lanes, distance, and traffic-flow capacity.
Inputs
Results
Total evacuation time (hrs)
1.57
Vehicles needed2,000
Road capacity (veh/hr)2,800
Clearance time (hrs)0.71
Travel time (hrs)0.86
Phased waves recommended1
People per wave5,000
How to Use This Calculator
- Enter Population to Evacuate and Number of Outbound Road Lanes available.
- Set Distance to Safety (miles) and Average Vehicle Occupancy.
- Enter Average Travel Speed (mph) — use conservative estimates for congested evacuation conditions.
- Review Vehicles per Hour per Lane and Total Evacuation Time (hrs).
- If total time exceeds your warning lead time, model additional contraflow lanes or mandatory early departure.
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