Completing construction projects on time, within budget, scope and specified standard successfully is a major problem in most construction projects in developing countries. Among these, time and cost overrun happen on frequent basis, especially when the project is a megaproject. This problem heavily...

In construction industry, a bid evaluation system for selection of a qualified contractor to execute a road construction project is a complex procedure faced by clients and consultants. Achieving a value-based procurement approach is a challenge, as the Ethiopian Road Authority (ERA) bid evaluation,...

Addis Ababa black clays are one of two rampant clay types found in the city and are known for their expansive nature. Using the unified soil classification system, such soil, traditionally, is classified by the group name fat clay and group symbol of CH. But some investigations on local soil have re...

Pedestrians represent the major at-risk groups of road traffic crushes in cities of the global south (WHO 2018). Crossing multi-lane roads is also the most challenging risk factor in Addis Ababa (A.A), Ethiopia (Hirpa 2017). The main objective of this paper was to identify the most frequent mistakes...