Browsing by Author "Mekonnen, Getahun"

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    Modeling of Gravel Loss for Unsealed Roads
    (Addis Ababa University, 2015-02) Mekonnen, Getahun; Teklu, Bikila (PhD)
    Gravel loss is the reduction in thickness of the surfacing course of gravel road. It can be caused by many factors. Traffic as average daily traffic (ADT), climate in terms of mean monthly precipitation (MMP), geometric design parameters of the roads represented by absolute gradient (G), surface material of the road in terms of plasticity index (PI) and the duration of observation (D) was used as the model independent variable. The dependent variable of the model, gravel loss, was collected by observing the selected gravel roads in three month interval. The selected roads were D/Birhan-Kasima, D/Birhan- Ankober and Chacha-Tsgerada –Ginager. The samples were prepared in to a grid of 15m of which divided into 5m interval. Elevation, across the width of the road, was observed using total station. Independent variables included in the model were gathered using standard procedure and methods. Two models were developed using SPSS 15.0.The first model used multiple linear regression (MLR) model and it had a prediction power of 87.9% (R2 of 0.879). The second model used general linear modeling (GLM) and it had a prediction power of 99.4% (R2 of 0.994). The model helps the parties involved in managing gravel roads. It can be used in gravel roads management system; in determination of maintenance and rehabilitation requirement and in predicting the residual life of gravel roads.
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    Service quality in Addis Ababa restaurants Vis-a-vis Price (Cases from Arada, Gulelle.and Kirkos Sub- Cities)
    (A.A.U, 2008-06) Mekonnen, Getahun; Murthy, Krishna (Professor)
    Perceived service quality as measured by five dimensions of service quality and price IS the central point of discu ssion in- this study. The mqUlry was to scrutinize a gap between customers' service quality expectation s and cu stomers' service quality perceptions (experience). Customer survey was conducted by administering a questionna ire designed by incorporating the five dimensions of SERVQUAL and price. The five dimensions of service qua lity are accepted by Customers . The most favored dimension of the five is tangibles. Responsiveness and empathy are the second favored dimensions by cu stomers. Reliability and assurance follow being the third and fourth . However, resta u rants are not performing well with respect to empathy, tangibles, reliability. A slightly equal proportion of respondents stood in opposite directions with respect to price as an indicator of service quality
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    Service quality in Addis Ababa restaurants vis-a-vis price; cases from Arada, Gulelle, and Kirkos Sub-cities'
    (A.A.U, 2008-06) Mekonnen, Getahun; G.Murthy, Krishna (Professor)
    Perceived service quality as measured by five dimensions of service quality and price IS the central point of discussion in this study. The Inquiry was to scrutinize a gap between customers' service quality expectation s and customers ' service quality perceptions (experience). Customer survey was conducted by administering a questionnaire designed by incorporating the five dimensions of SERVQUAL and price. The five dimensions of service quality are accepted by customers. The most favored dimension of the five is tangibles. Responsiveness and Empathy are the second favored dimensions by customers. Reliability and assurance follow being the third and fourth . However, restaurants are not performing well with respect to empathy, tangibles, reliability. A slightly equal proportion of respondents stood in opposite directions with respect to price as an indicator of service quality.