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Social and Behavioral Sciences Commons™
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Articles 1 - 7 of 7
Full-Text Articles in Social and Behavioral Sciences
Prediction Of Long-Term Urban Stormwater Loads At Single Sites, Daniel May, Muttucumaru Sivakumar
Prediction Of Long-Term Urban Stormwater Loads At Single Sites, Daniel May, Muttucumaru Sivakumar
Faculty of Engineering and Information Sciences - Papers: Part A
Long-term total phosphorus loads from 17 urban catchments in the USA were predicted using five different measures of central tendency defining site mean concentration (arithmetic mean, geometric mean, median, harmonic mean and flow-weighted mean). Overall, the flow-weighted mean concentration produced the most accurate predictions of long-term loads. The geometric mean produced the second most accurate predictions. Along with the median and harmonic mean, the geometric mean predicted long-term load relatively well at most catchments exhibiting negative correlations between event mean concentration and total event runoff depth. However, they significantly underestimated long-term load at catchments exhibiting a positive correlation between these …
An Evaluation Of Thermal Earth Observation For Characterizing Urban Heatwave Event Dynamics Using The Urban Heat Island Intensity Metric, Tomas Holderness, Stuart Barr, Richard Dawson, Jim Hall
An Evaluation Of Thermal Earth Observation For Characterizing Urban Heatwave Event Dynamics Using The Urban Heat Island Intensity Metric, Tomas Holderness, Stuart Barr, Richard Dawson, Jim Hall
Faculty of Engineering and Information Sciences - Papers: Part A
Urban areas have a high sensitivity to extreme temperature events such as heatwaves due to increased absorption and re-radiation of thermal energy from man-made materials as well as anthropogenic heat outputs. Variations in urban form, land use, and surface cover result in spatial variability in temperatures across urban areas, meaning that exposure to extreme events is variable at the sub-city scale. Such variability must be quantified in order to better understand urban temperature interactions and identify areas with the greatest potential exposure to extreme heatwave events. Earth observed data offer a spatially complete and homogenous data source to supplement observations …
An Investigation Of The Effectiveness Of Interdiction Regimes Against Terrorist Attacks In An Urban Transport Hub, D Keep, I Piper, A Green
An Investigation Of The Effectiveness Of Interdiction Regimes Against Terrorist Attacks In An Urban Transport Hub, D Keep, I Piper, A Green
Faculty of Engineering and Information Sciences - Papers: Part A
This paper examines the effect of varying attack and interdiction strategies, both alone and in combination, in an urban transport hub. Particular attention is paid to the potential disruption to normal commuter services resulting from an intrusive stop and search regime. The work presented here represents a qualitative investigation in that many parameters relating to the details of the interdiction mechanisms are first-order approximations. However, the background against which the investigation is conducted has been constructed to be as realistic as possible. The simulation is performed using our generalised microsimulation framework Simulacron , along with a reper- toire of simulation …
Studying The Impact Of The Corner Propagation Model On Vanet Routing In Urban Environments, Abhinay Mukunthan, Craig Cooper, Farzad Safaei, D. Franklin, Mehran Abolhasan
Studying The Impact Of The Corner Propagation Model On Vanet Routing In Urban Environments, Abhinay Mukunthan, Craig Cooper, Farzad Safaei, D. Franklin, Mehran Abolhasan
Faculty of Engineering and Information Sciences - Papers: Part A
Accurate modelling of the radio channel is often the most difficult aspect of a Vehicular Ad Hoc Network (VANET) simulation due to the large variability present in vehicular terrain. CORNER is a propagation model that calculates path-loss in an urban terrain with a large concentration of buildings, based on the position of the transmitter and receiver on a street map. This paper proposes additions to the CORNER propagation model to take selective multi-path fading into account and investigates the performance of the GPSR routing protocol under the CORNER propagation model in a realistic city environment.
Instrumentation For Slope Stability - Experience From An Urban Area, P N. Flentje, R N. Chowdhury
Instrumentation For Slope Stability - Experience From An Urban Area, P N. Flentje, R N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
This paper describes the monitoring of several existing landslides in an urban area near Wollongong in the state of New South Wales, Australia. A brief overview of topography and geology is given and reference is made to the types of slope movement, processes and causal factors. Often the slope movements are extremely slow and imperceptible to the eye, and catastrophic failures are quite infrequent. However, cumulative movements at these slower rates do, over time, cause considerable distress to structures and disrupt residential areas and transport routes. Inclinometers and piezometers have been installed at a number of locations and monitoring of …
Quantitative Landslide Hazard Assessment In An Urban Area, Phillip N. Flentje, Robin N. Chowdhury
Quantitative Landslide Hazard Assessment In An Urban Area, Phillip N. Flentje, Robin N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
Before decisions can be made concerning the management of sloping areas subject to landsliding, systematic approaches for hazard and risk assessment must be developed. This paper is limited to a discussion of hazard assessment and describes quantitative approaches which have been developed for existing landslides. Consideration of areas of potential landsliding is outside the scope of the paper. The approach described here is based on (a) monitoring of subsurface shear movement at instrumented sites and (b) the percentage exceedance time of cumulative rainfalls considering different selected periods of antecedent rainfall. This approach is used in conjunction with a simpler approach, …
Effective Urban Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
Effective Urban Landslide Hazard Assessment, Robin N. Chowdhury, Phillip N. Flentje
Faculty of Engineering and Information Sciences - Papers: Part A
Landslide hazard assessment is a vitally important component of any strategy for the management of risk of instability in hilly areas. Within many urban areas, reactivation of landslides is an important component of risk. Yet, most qualitative approaches do not differentiate between the hazard of individual landslides. Two quantitative approaches are introduced in this paper both of which utilise GISbased accurate maps of geology and landslip as well as a landslide database. The first method is based on historical recurrence of individual landslides. The second method is based on monitoring of subsurface shear movements, and their relationships to rainfall. Both …