Implication of Web-Based Open- Source Application in Assessign Design Practice Reliability :in Case of Era's Road Projects
Creators: name: Mohammed, Bilal Kedir
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2020
Subjects: Road Project Implementation, Design practice, Reliability Assessment, Open-Source, Web -Based Application, Ethiopian Roads Authority.

description: Unreliable design practices on Ethiopian road construction projects have become a<br> crucial matter concerning the late completion of road construction projects, high-cost<br> overruns and premature failures. Thus, managing the design process plays a major<br> role on the Ethiopian construction industry for delivering projects on time, to budget<br> and to the specified quality.<br> There is a need to educate an increasing number of people in design management<br> techniques to equip them to manage today’s fast moving and demanding projects.<br> However, in recent years design become reason for the escalation of project cost and<br> time due to inconsistent approach of design practice of Consultants. Therefore, to<br> improve design management in the industry, current techniques should be modified to<br> align them with the needs of the modern design aspects.<br> This research has assessed the design management practice of different Consultants<br> with the aim of improving the practice and comprises contents of design process.<br> From this practice of design management recommendations and strategies developed<br> in order to fill the gaps between the practices. The research encompasses the<br> Revealed Preference and Stated Preference data conducted through traditional<br> printed questionnaires versus online Web-Based cellular phone questionnaires for<br> assessing design practice concerning design Firms of road projects administered by<br> Ethiopian Roads Authority. Online real-time application-based questionnaire was<br> developed for both the data collection and interpretation for existing practices of road<br> design.<br> To this respect, the investigation was carried out using a method called “Nonparametric statistic of Spearman’s ranking correlation” to ensure the quality of<br> questionnaire survey data and case study of the pilot projects through interview.<br> Accordingly, it was understand that lack of integration between designers’ of different<br> disciplines, duration of design projects, the time interval to implement designed<br> projects, and negligence of the design Consultant are the first four ranked critical<br> factors contributing the design practice to be inconsistent with Spearman’s<br> correlation coefficient of 0.749. Hence, the results revealed that Consultants’ design<br> controlling process is not integrated with the management and evaluation of<br> information throughout the design process with considering the time constraints.<br> Besides, the surveyed result further revealed that the very limited application of<br> tactics for developing consistent design practice in managing and evaluating<br> information through planning, monitoring should be improved and will helpful for<br> those, involved in design management and the development of tools and practices to<br> improve design reliability in Engineering and Construction Industries.