Natural hazards, such as severe winter storms, flooding, and tornadoes play a major role in how cities develop and plan. It is because of their natural and inevitable occurrence that there is very little we can do to control them; and all communities are vulnerable to a list of natural and man-made hazards, especially that of flooding and severe storms.
The report looks at assessing the accuracy of estimating impervious surface areas (ISAs) by zoning code, the method utilized by the City of Omaha, Nebraska. A 101 acre subcatchment had all ISAs manually digitized and compared the actual with the estimated value. The subcatchment was then modeled with 10 percent decreases of ISAs to establish the relationship with peak flow rates and total volume in the combined sewer service area.
Walking, unmistakably, is one of the most common things we do as humans, but as researchers will tell you, where we walk, how we walk, how often we walk and how fast we walk are all influenced by a myriad of factors, including the physical environment.