February 1, 2016 Thesis Open Access

FAYERA MOSISA

DCAT Export

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    <dct:title>TRACK SURVEYING AND SPEED OPTIMIZATION (CASE STUDY ADDIS ABABA – ADAMA LINE)</dct:title>
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    <dct:description>&lt;p&gt;Speed Optimization is a means of improving the geometric alignment, infrastructure and&lt;br&gt; construction materials and structure performance during the working cycles under some manufacturing,&lt;br&gt; operational and failure conditions as well as cost limitations.&lt;br&gt; The new Ethiopian national railway network design speed is about 120Km/h which is too low when&lt;br&gt; compared with some developed countries rail speed. Construction of new high speed line needs huge&lt;br&gt; investment that may not be viable for a developing country like Ethiopia and optimization of existing line&lt;br&gt; using different techniques is the available option. The major anticipated problems/demand behind for&lt;br&gt; high speed for the country national rail network and Addis Ababa &amp;ndash; Adama line in particular are for that&lt;br&gt; it is Competitive with toll road of same speed, located along the development axis area of Ethiopian&lt;br&gt; economy, located along country&amp;rsquo;s industrial zone highly polluted by industry emission, national image&lt;br&gt; building, attracting investor and delay of freight at sea port.&lt;br&gt; Optimization of speed were done by enquiring and analyzing existing track geometry and track super&lt;br&gt; structures, construction materials and other speed related parameters to identify restrictive sections and&lt;br&gt; the maximum allowable speed of the line. Geometric analysis and design were done by Bentley Inrail&lt;br&gt; software in the optimization process and finite element methods were used for analyzing of track&lt;br&gt; component response under optimized speed&lt;/p&gt;</dct:description>
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