Communication and transportation networks are among the most important infrastructures critically involved in the development of different countries. The structural and tectonic position of Iran causes significant damage to its communication networks every year. Therefore, it is essential to adopt an integrated and flexible approach for assessing seismic risk in terms of available indicators. T...

This report has been prepared by Mitretek systems for the Intelligent Transportation Systems (ITS) Joint Program Office Of the Federal Highway Administration (FHWA). The report documents the first phase of an investigation of how to " mainstream " , or integrate, ITS planning into general transportation planning at the state, regional and local levels. Specifically described are the processes b...

The National Transportation System (NTS), an outgrowth of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), is proposed in this research as an analytical tool to guide national transportation policy-making. The NTS must be based upon measures of transportation performance that are intermodal, user-oriented,. and suitable for tracking the environmental, social, and economic o...

Transports on rail are increasing and major railway infrastructure investments are expected. An important part of this infrastructure is the railway power supply system. The future railway power demands are naturally not known for certain. This means investment planning for an uncertain future. The more remote the uncertain future, the greater the amount of scenarios that have to be considered....

Many problems in transportation can be represented as flow problems, and can be optimally solved using efficient linear programming techniques [BIIM77] [BGAB83]. But in some cases this approach is seriously oversimplified. If the problem includes dependencies between different operations, planning is necessary. If the system parameters change dynamically, the assumptions on which flow models ar...

Overview There has often been an uneasy relationship between politics and planning in the selection of the policies and investments that shape urban areas. Competing interests vie to shape these decisions through the political process, while planning attempts to rationalize the process through analytical methods. Experience has shown that politics all too often trumps analysis, leaving both sid...