The objective of the project management is to optimize the quality time and resource tornthe best possible way. In this regard project planning and scheduling has very criticalrnimpact on projectâ€™s performance. Well organized project management team recognizesrnthe importance and applies the basics to achieve the project objectives. The aim andrnobjective of this study is to assess the practice and impacts of the planning andrnscheduling of road projects and make recommendation based on findings to road projectsrnthat are carried out by the Federal Government of Ethiopia.rnIn order to achieve its objectives, case study of ten projects, desk studies concerning thernsubject matter on the current trends of Ethiopian roads authority, and 26 interviewrnresponses of professionals from Ethiopian Roads Authority, consulting firms andrncontractors have been analyzed.rnAccordingly the findings from the research show that there is a need to improve planningrnand scheduling trends because risk factors associated with non excusable delays havernbeen triggered due to lack of proper planning and scheduling in execution of works.rnTherefore in order to improve the performance of time in projectâ€™s, in plan and schedulernoperation, it is fundamental to implement the principles of constructability review and itsrnfollow up mechanisms for each project. Constructability review teams should be formedrnindependently from designer, projects managers and other professionals even though thernteam members should have to be well experience on those projects execution areasrnWell planned and scheduled works are not meaning perfect and not amendable after thernproject is commenced. Rather it always needs to be followed by rigorous review of thernplan, reschedule and updates of the project completion.rnKey words: Plan, Schedule, Risk assessment, Constructability, Planning appraisals, nonrnexcusable delays.