from the histogram below in figure 9
Road Factor.
Rt ORRSTI KUCFN IN
ROS ase
Figure 9 Road surface factor histogram
Combining the road factor map with the original CO2 reduced
map, the resultant map will be as illustrated in fig 10 a map of
CO2 reduced values but aggregated using the factor from road
surface.
> Reduced Col values by = |;
^ p, Contolfiag Energy Consumption & Road Effects Á
Figure 10 Reduced CO2 (energy reduction and Road factors)
3.4 CO2 and Combined effects from Greenery and Roads
When combing the resultant maps we a get a better
understanding of the CO2 reduction that considers not only
energy reduction but also factors from greenery and factors
from road surfaces., and this off course can be done for several
more factors that has a regional, climate, or cultural effect to
assess sustainability measures, the resultant map is illustrated
below in figure 11.
These maps are to be combined in more scenarios where the
pixel level is different; this measure will involve interpolations
which will result considering neighbour pixel values.
Again as this practice was performed for CO2 reduction it can
be repeated for other gasses, provided that those layers shall be
used that has most effect on it, then also combinations of
different gasses maps perhaps weighted to their level of harming
to the environment and sustainability and finally the results
should be used to assist the indicators and to improve the works
of urban design, redesign and urban management towards
sustainability.
The factor map above calculated is used with the taken value
Reduced Co values hy Controlling
4 Enecgy Consusiption & (Grecoery Favorite, & Road Effects)
Figure 11 Reduced CO2 Map
(Energy reduction + Green factor - Road factors)
4. CONCLUSION
GIS role to assist ranking urban sustainability is shown
using the practical examples above, where tangible results
could be measured, and clear understanding is provided,
conducting the scenarios thus provide urban planners the
tools to manage sustainability and use the indicators more
effectively relating them to GIS layers.
The results on the other hand showed that condensing
greenery areas and decreasing some categories of road
surfaces help sustain urban planning by providing more
accurate results of CO2 reduction, further assessments
should take place to replace the assumptions with actual
values and consequently verify the scenarios results.
References:
ADM, ADM Energy Management Report 2011
Wilson, J., Tyedmers, P, Pelot, R 2007. Contrasting and
Comparing sustainable development indicator metrics.
Reza Banai, Land Resources Sustainability for Urban
Development
Abdulmuttalib h, Quality Aspects of Monitoring Environmental
Variations Using Combined GIS & Remote Sensing Techniques
with Emphases on Data Modelling, FIG 2006
Abdulmuttalib h, Total Quality Measures for Environmental
Coastal Monitoring Using Remote Sensing, Lidar Bathymetry,
Radar Altimetry and GIS Techniques, FIG Congress 2006
Abdulmuttalib H, Aspects of Data modelling of Fused Surfaces
with Planimetric Data In a Topographic Geodatabase,
ISPRS Congress Istanbul
Abdulmuttalib H., (1998), *GIS Modeled Surfaces And Total
Quality Management”, 2nd Int. Ph.D. Symposium in Civil
Engineering 1998 Budapest.
4.1 Acknowledgements
We thank those whom participated in the support activities of
conducting the analysis or in providing some data, and
particularly Albert Agasthyan and Khalid Khamis.
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