xpswmm/xpstorm/xp2D
Assist with Emergency Action Plans
Computational Hydrology Lots of numbers Physical approximations
∼ Soil parameters ∼ Rainfall data
High decimal accuracy
∼ Be careful – it’s an exact science… The actions taken innot the initial minutes of an emergency due to a hydraulic situation are critical to save property and lives.
Computational Hydrology Lots of numbers Physical approximations
∼ Soil parameters ∼ Rainfall data
High decimal accuracy
Whether emergency caused by a ∼ Bethe careful – it’s not an is exact science… 100 year storm, a pipeline failure, reservoir failure or dam breach, a practical Emergency Action Plan begins with a reasonable risk assessment to identify potential evacuation routes.
1D/2D Models for Planning Over the last few years 2D and Integrated 1D/2D models have become more popular for both urban and riverine modeling. While these models have mostly been used for floodplain mapping and conveyance or flood study investigations they can also be applied to areas such as emergency response and planning.
Flood Hazard Analysis xpswmm/xpstorm with xp2D (integrated 1D/2D model) provide new flood reporting tools to analyze flood hazards and give a new depth of information beyond what a typical static hazard map can provide including:
• assessment of the duration and timing of overland flows
• time to inundation maps • evacuation route cutoff time for user-defined water depths.
1D/2D Models for Dam Breach The integrated 1D/2D fully dynamic analysis provides a more realistic interpretation of the flood wave and resultant dam breach hydraulics. The user then has access to a more realistic representation of a dam breach scenario and the properties or structures downstream that would be affected.
Analyze time to inundation
Users can now compute and visualize how long it takes to reach a certain depth of inundation in areas of flooding and also evacuation route cutoff time for different water depths. For example, you can investigate a specific evacuation route by specifying it in your model. The software computes and displays locations on that route that would be cut off by high water.
Time to inundation scenarios
In xp2D, the user can enter the depth cutoff value as well as a description such as minor, intermediate or major event. They might alternatively describe levels for pedestrians, common vehicles or emergency vehicles.
Determine cutoff depths
For example if we say that the crown of the road is exceeded at a depth of 0.1 meter, we might want to map across the whole area how long it takes each area to exceed that depth. Then at 0.2 meters the curb might be exceeded, so we might observe how long it takes for that exceedance. Likewise, at 0.4 meters we would want to know when to disallow vehicles to drive through.
Determine cutoff depths
Different maps can provide the time to reach different inundation levels. For example, this map shows a lesser flooded area because it indicates time to exceed .4 meters, which is our emergency vehicle level. Since the entire area does not typically reach .4 meters, the inundated area appears smaller.
Analyze Evacuation Routes Add a new layer to create and analyze evacuation routes. Consider this scenario: using the time to inundation analysis supplemented by traffic analysis, a planner can draw a route along desired roads for a proposed route. The user defines acceptable inundation levels for the road crown, curb and for vehicles .
Analyze Evacuation Routes
The analysis will map and report for your points along this road indicating the time and location it first reaches these inundation levels.
Contact XP Solutions This is one of many applications of the xpswmm/xpstorm/xp2D 1D/2D model. Contact your local XP Solutions office to learn more about the features and uses of these software programs or to get a private demonstration. Contact XP Solutions: North America: +1-888-554-5022 Australia Asia Pacific: +61 (2) 6253 1844 United Kingdom: +44 0 1635 582555 sales@xpsolutions.com