This article presents results from the first statistically significant study of traffic forecasts in
transportation infrastructure projects. The sample used is the largest of its kind, covering 210 …

This paper presents results from the first statistically significant study of traffic forecasts in
transportation infrastructure projects. The sample used is the largest of its kind, covering 210 …

This research evaluates the accuracy of demand forecasts using a sample of recently-
completed projects in Minnesota and identifies the factors influencing the inaccuracy in …

Little research has been carried out on before-and-after studies of traffic and costs in large
transport infrastructure projects. The few studies made all show a tendency for forecasts of …

Project promoters, forecasters, and managers sometimes object to two things in measuring
inaccuracy in travel demand forecasting:(1) using the forecast made at the time of making …

Substantial errors in forecasting ridership and costs for the ten rail transit projects reviewed
in the report put forth the possibility that more accurate forecasts would have led decision …

This paper deals with the accuracy of travel demand forecasts among Norwegian road
projects. We use data collected from tolled roads and toll free roads. The results reveal that …

Travel demand forecasts play a crucial role in the preparation of decision support to policy-
makers in the field of transport planning. The results feed directly into impact appraisals such …

It is a truism that the transportation system is a critical component of every urban economy,
and that transportation policy decisions can have a profound effect on the development of …

Despite the enormous sums of money being spent on transportation infrastructure,
surprisingly little systematic knowledge exists about the costs, benefits and risks involved …