Now showing items 1-3 of 3
Distributed Hydrologic Modeling of the Upper Roanoke River Watershed using GIS and NEXRAD
(Virginia Tech, 2003-03-27)
Precipitation and surface runoff producing mechanisms are inherently spatially variable. Many hydrologic runoff models do not account for this spatial variability and instead use "lumped" or spatially averaged parameters. ...
Using Light Detection and Ranging (LiDAR) Imagery to Model Radio Wave Propagation
(Virginia Tech, 2003-03-20)
The purpose of this study was to determine if light detection and ranging (LiDAR) imagery could provide a significantly more accurate data set for modeling near line-of-sight (LOS) propagation at higher frequencies, ...
An Analysis of Emergency Vehicle Crash Characteristics
(Virginia Tech, 2003-08-07)
Crash data suggests that intersections are areas producing conflicts among the various road users because of entering and crossing movements. Traffic signal control systems may not always be sufficient in preventing ...