These views include bandwidth representations when necessary. Because the interface is a very standard Windows application, network views may be copied instantly to any other Windows application, such as a word-processing document containing the report of the study, a spreadsheet or a presentations document. Because it is a Windows program, installation of the programs is seamless, and all graphical devices that may have been installed, such as colour screens, plotters, printers, and so on, are immediately accessible. Zone-based results in terms of population, employment and land use, were disaggregated to the level of polygons. To achieve this, a number of typical GIS procedures were applied, such as calculating the proximity of each polygon to a highway interchange, proximity to parks and recreational facilities, and so on.
Demand is assigned to vehicles of various modes, and vehicles are assigned to the network.
After assignment, all vehicles are transformed into PCU units or any other common units, and are subject to a common capacity-constraint procedure. This means that the speeds of all vehicles sharing a common physical link are adjusted accordingly. In a typical urban application, this means that cars and buses, minibuses, or even non-motorised modes contribute to, and are affected by, congestion. In a typical regional application, goods vehicles and passenger vehicles interact in a similar fashion. Congestion, in turn, affects not only user s perceived costs, but also operating costs, energy consumption and emissions.