1. 1- Abbas K. A. and Abd-Allah H. Mona (1999) Estimation and Assessment of Cost Models for Main Transit Systems Operating in Cairo. Transport Reviews, Vol. 19, No. 4, pp. 353-375. Francis & Taylor, UK

Abstract:

This paper reviews the main characteristics of the provision of urban transit systems in Cairo, namely buses, minibuses, river buses, trams, and surface metros, all being currently operated by Cairo Transport Authority (CTA). The paper presents some generic types of indicators to compare and assess the performance of the five main urban transit systems provided by CTA. The CTA budget plan for the Financial Year 96/97 is reviewed. The absence of any form of cost modelling as an integral part of CTA budget plans is identified. In this paper, an attempt is made to develop cost models for the main urban transit systems operated by CTA. Four generic approaches for estimating cost models for transit services are comparatively reviewed, namely the causal factor, cost allocation, regression and temporal variation methods. Cost allocation methods are particularly applied in this research to estimate different cost models for the main transit systems operated by CTA. These models are meant to assist in predicting and showing the relative magnitude of expected changes in various cost categories, resulting from systems/services expansion or down-sizing for the transit modes operated by CTA. The development of such models is thought to contribute in raising the cost consciousness in CTA with the ultimate benefit of maximizing system efficiency.

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.

1. 2- Abbas K. A. and Abd-Allah H. Mona (1998) Estimation of Consumption and Requirement Models for Bus Transit System Operated by Cairo Transport Authority. Civil Engineering Research Magazine (CERM), Volume 20, No. 3, pp. 441-461. Faculty of Engineering, Al-Azhar University, Cairo, Egypt.

Abstract:

Mass transit systems in the city of Cairo are being mainly operated by the Cairo Transport Authority (CTA). These transit systems include buses, minibuses, trams, metros and river buses. In this paper, the CTA bus transit system is reviewed, where the main operational characteristics of CTA bus garages are presented. The core of the paper lies in the estimation and testing of different regression models that are meant to produce an acceptable presentation of the consumption of materials and the requirement of staff by buses operated by CTA. The development of materials consumption models include developing separate models to represent the consumption of fuel, oil and lubricants by buses. On the other hand, the development of staff requirements models include developing separate models to represent the requirement of drivers, conductors, and engineering staff by buses. More than twenty different linear regression models are developed for each of the above mentioned consumption and requirement parameters. Comparative statistical analysis of these models are conducted and models that are judged to produce the best presentation of reality are identified. Ultimately, these are meant to minimize the operating costs, without affecting the quality of produced services. These can also give guidelines for the decision maker on areas that warrant intervention so as to reduce consumption rates and minimise requirements. Ultimately, this would lead to minimizing operating costs, without affecting the quality of produced services. The paper concludes with a set of conclusions and recommendations that are meant to improve the performance of the bus transit system operated by CTA in Cairo.

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.