Articles


EXAMINING SAFETY IMPACTS OF ROAD CROSS-SECTIONAL ELEMENTS AND LAND USE AT MIDBLOCK LOCATION IN ADDIS ABABA


Author/s: GETU SEGNI TULU, ALEMU DABA MOKONNEN, ABRHAM GEBRE TAREKEGN
Abstract
Road safety issues are major causes for economic, social and health problems, especially in the developing countries. Consequently, the city of Addis Ababa has taken big share of the road traffic crashes in the country of Ethiopia. Road traffic crush is the result of complex interactions between the...

THE USE OF NATURAL POZZOLLAN TO STABILIZE CIDER GRAVEL FOR ROAD BASE (ALONG MODJO-ZIWAY ROUTE)


Author/s: THOMAS TESHOME AND SAMUEL TADESSE
Abstract
In road construction using locally available materials plays a significant role in cost and time saving of road construction projects. Cinder gravel is abundantly available in different parts of Ethiopia. However, its use has been for too limited purposes due to its light weight, rough surfaces and...

UTILIZING WASTE PLASTIC BOTTLES IN BITUMINOUS ASPHALT MIX


Author/s: ABEL GEBRETSDIK, ABRAHAM SEBSIBE, MILLION BAYOU, RUTH TADESSE, SOSINA SEYOUM & DR. TENSAY GEBREMEDHIN
Abstract
This research use Polyethylene Terephthalate as hot mix asphalt modifier. Polyethylene Terephthalate is one component of plastic material, and the research is concerned with the possibility of utilizing waste plastic bottle as an ingredient in asphalt concrete to increase the mixture engineering pro...

HYDRAULIC PERFORMANCE MODELING AND IMPROVEMENTS OF WATER SUPPLY DISTRIBUTION SYSTEMS


Author/s: ZERIHUN ABIYU AND DR.ING. GEREMEW SAHILU
Abstract
Water Supply Distribution Systems Utilities are designed to continuously supply safe, reliable and affordable, portable water to end users. As time elapses, meeting these commitments embraces multiple challenges in urban areas. The objectives of this work are to evaluate the hydraulic performance of...