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  • Estimating vehicle operating costs (英语)

    Understanding the costs of road construction, road maintenance and vehicle operation is essential to sound planning and management of road investments. While the infrastructure costs borne by road agencies...

    文件类型: 出版 报告号: WTP234 文件日期: 1994年1月31日 披露方式: 作者: Archando-Callao, Rodrigo S.,Faiz,Asif

  • Road deterioration in developing countries : causes and remedies (英语)

    Between the 1960s and the 1980s, developing countries have lost precious infrastructure worth billions of dollars through the deterioration of their roads. Large road networks, built at great expense...

    文件类型: 出版 报告号: 13370 文件日期: 1988年10月31日 披露方式: Disclosed 作者: Harral, Clell G.,Faiz,Asif