الفهرس 
Problem Statement and Research ObjectivesOnly 14 pages are availabe for public view
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Abstract
Most of the running engineering projects in Egypt are classified under
transportation sector. Upgrading the transportation network is the most
important issue to the stakeholders in Egypt. Where, upgrading the road
network leads to increase Green-House Gas (GHG) emissions that cause
climate change. Energy consumption and emission assessments were rarely
made in road projects during the construction phase in Egypt. Reducing
these emissions would significantly decrease the negative impacts related to
these infrastructure works.
Therefore, the fundamental objective of this thesis is to build up a tool to
assess the emissions of earthworks construction.
These emissions can be assessed by using environmental Life-Cycle
Assessment (LCA) approaches that account for the raw material acquisition
and production, construction, use, maintenance, and end-of-life of roads.
The thesis presents the followed methodology for developing assessing tool
. A case study from
Egypt (western desert) was selected to perform this study.
A data collection survey was carried out to collect all sufficient and
available data for the construction activities, machine productivity, distances
which the transportation trucks travel to haul the materials, locations of
crushing plants and borrow pits, etc.
The preliminary analysis of the collected data confirmed the necessity of the
classification of the construction activities in order to develop energy and
emission models. Further analysis looked at the differences between
machines used in one activity and significant differences were found among
the cut & fill, leveling & compaction and transportation activities.
and
accumulating on the road surface due to wind in the operation stage, the
earthworks quantities are very high and the total CO2 emissions of the case
study are 1,648 ton / 7.5 km length. A proposed design alternative has been
presented and studied based on optimizing the earthwork quantities in the
normal conditions. The proposed alternative reported total CO2 896 ton for
the same 7.5 km.
Finally, this tool can be used in the design stage to evaluate the CO2
emissions after implementing construction management plans and is very
useful to achieve climate change and global warming targets.